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DOE OSTI2020

Materials Data on Mg16Al12Sn by Materials Project

Mg16Al12Sn is gamma-brass-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 1-coordinate geometry to three Mg, six Al, and one Sn atom. There are two shorter (3.07 Å) and one longer (3.13 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.08–3.10 Å. The Mg–Sn bond length is 3.10 Å. In the second Mg site, Mg is bonded in a 1-coordinate geometry to four Mg and twelve Al atoms. There are one shorter (3.13 Å) and two longer (3.18 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.10–3.24 Å. In the third Mg site, Mg is bonded in a 11-coordinate geometry to four Mg, six Al, and one Sn atom. All Mg–Mg bond lengths are 3.05 Å. There are a spread of Mg–Al bond distances ranging from 3.08–3.12 Å. The Mg–Sn bond length is 3.45 Å. In the fourth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.12–3.17 Å. There are a spread of Mg–Al bond distances ranging from 2.91–3.15 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, five Al, and one Sn atom. There are a spread of Mg–Mg bond distances ranging from 3.06–3.25 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.24 Å. The Mg–Sn bond length is 3.16 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.11–3.18 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.22 Å. In the seventh Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, five Al, and one Sn atom. There are two shorter (3.15 Å) and one longer (3.17 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 2.90–3.24 Å. The Mg–Sn bond length is 3.12 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.04 Å) and one longer (3.05 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.06–3.14 Å. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, five Al, and one Sn atom. The Mg–Mg bond length is 3.14 Å. There are a spread of Mg–Al bond distances ranging from 2.94–3.21 Å. The Mg–Sn bond length is 3.13 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.92–3.12 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.68 Å) and two longer (2.74 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 11-coordinate geometry to seven Mg, three Al, and one Sn atom. Both Al–Al bond lengths are 2.72 Å. The Al–Sn bond length is 2.92 Å. In the third Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.72–2.75 Å. In the fourth Al site, Al is bonded in a 11-coordinate geometry to seven Mg, three Al, and one Sn atom. There are one shorter (2.67 Å) and one longer (2.81 Å) Al–Al bond lengths. The Al–Sn bond length is 3.02 Å. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.78 Å. In the sixth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.70 Å. In the seventh Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.75 Å. Sn is bonded in a 10-coordinate geometry to eight Mg and three Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce4Al23Ni6 by Materials Project

Ce4Ni6Al23 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Ce sites. In the first Ce site, Ce is bonded in a 11-coordinate geometry to two equivalent Ni and thirteen Al atoms. Both Ce–Ni bond lengths are 3.26 Å. There are a spread of Ce–Al bond distances ranging from 3.06–3.41 Å. In the second Ce site, Ce is bonded in a 11-coordinate geometry to two equivalent Ni and thirteen Al atoms. Both Ce–Ni bond lengths are 3.29 Å. There are a spread of Ce–Al bond distances ranging from 3.07–3.38 Å. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded in a 7-coordinate geometry to two equivalent Ce and seven Al atoms. There are a spread of Ni–Al bond distances ranging from 2.37–2.53 Å. In the second Ni site, Ni is bonded in a 7-coordinate geometry to nine Al atoms. There are a spread of Ni–Al bond distances ranging from 2.42–2.81 Å. In the third Ni site, Ni is bonded in a 10-coordinate geometry to two equivalent Ce and eight Al atoms. There are a spread of Ni–Al bond distances ranging from 2.39–2.55 Å. There are twelve inequivalent Al sites. In the first Al site, Al is bonded in a distorted bent 150 degrees geometry to two equivalent Ce, two Ni, and five Al atoms. There are a spread of Al–Al bond distances ranging from 2.72–2.89 Å. In the second Al site, Al is bonded in a distorted trigonal planar geometry to three Ni and two Al atoms. There are one shorter (2.72 Å) and one longer (2.73 Å) Al–Al bond lengths. In the third Al site, Al is bonded in a 12-coordinate geometry to four Ce and eight Al atoms. There are a spread of Al–Al bond distances ranging from 2.88–3.19 Å. In the fourth Al site, Al is bonded to two Ce, two equivalent Ni, and eight Al atoms to form distorted face-sharing AlCe2Al8Ni2 cuboctahedra. There are two shorter (2.74 Å) and one longer (2.84 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 3-coordinate geometry to one Ce, three equivalent Ni, and six Al atoms. There are two shorter (2.62 Å) and one longer (2.66 Å) Al–Al bond lengths. In the sixth Al site, Al is bonded in a 3-coordinate geometry to three equivalent Ce and three equivalent Ni atoms. In the seventh Al site, Al is bonded in a distorted bent 150 degrees geometry to three Ce, two Ni, and three Al atoms. In the eighth Al site, Al is bonded in a distorted single-bond geometry to three Ce, one Ni, and four Al atoms. Both Al–Al bond lengths are 2.91 Å. In the ninth Al site, Al is bonded in a 3-coordinate geometry to two equivalent Ce, three Ni, and one Al atom. In the tenth Al site, Al is bonded in a 2-coordinate geometry to three Ce, two equivalent Ni, and one Al atom. In the eleventh Al site, Al is bonded in a 12-coordinate geometry to four equivalent Ce and six Al atoms. In the twelfth Al site, Al is bonded in a distorted trigonal non-coplanar geometry to one Ce, three Ni, and one Al atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16Al12Pd by Materials Project

Mg16PdAl12 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 12-coordinate geometry to four Mg and twelve Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.15–3.30 Å. There are a spread of Mg–Al bond distances ranging from 3.12–3.24 Å. In the second Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.05–3.13 Å. There are a spread of Mg–Al bond distances ranging from 2.94–3.13 Å. In the third Mg site, Mg is bonded in a 1-coordinate geometry to five Mg, one Pd, and six Al atoms. There are two shorter (3.08 Å) and two longer (3.21 Å) Mg–Mg bond lengths. The Mg–Pd bond length is 2.98 Å. There are a spread of Mg–Al bond distances ranging from 2.99–3.33 Å. In the fourth Mg site, Mg is bonded in a 1-coordinate geometry to four Mg, one Pd, and six Al atoms. Both Mg–Mg bond lengths are 3.00 Å. The Mg–Pd bond length is 2.86 Å. There are a spread of Mg–Al bond distances ranging from 3.03–3.14 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to four Mg, one Pd, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.03–3.28 Å. The Mg–Pd bond length is 3.18 Å. There are a spread of Mg–Al bond distances ranging from 2.85–3.11 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.10–3.16 Å. There are a spread of Mg–Al bond distances ranging from 2.87–3.19 Å. In the seventh Mg site, Mg is bonded in a 2-coordinate geometry to four Mg, one Pd, and five Al atoms. There are one shorter (3.09 Å) and one longer (3.22 Å) Mg–Mg bond lengths. The Mg–Pd bond length is 2.82 Å. There are a spread of Mg–Al bond distances ranging from 2.86–3.16 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.04 Å) and one longer (3.05 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.06–3.13 Å. In the ninth Mg site, Mg is bonded in a 1-coordinate geometry to seven Mg, one Pd, and five Al atoms. The Mg–Mg bond length is 3.16 Å. The Mg–Pd bond length is 3.17 Å. There are a spread of Mg–Al bond distances ranging from 2.85–3.23 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to five Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.90–3.09 Å. Pd is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.63 Å) and two longer (2.66 Å) Pd–Al bond lengths. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 1-coordinate geometry to seven Mg, one Pd, and three Al atoms. There are one shorter (2.71 Å) and two longer (2.76 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a distorted q6 geometry to eight Mg and three Al atoms. Both Al–Al bond lengths are 2.75 Å. In the third Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.69–2.74 Å. In the fourth Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are one shorter (2.67 Å) and one longer (2.75 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.73 Å. In the sixth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.70 Å. In the seventh Al site, Al is bonded in a 1-coordinate geometry to eight Mg, one Pd, and three Al atoms. The Al–Al bond length is 2.72 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16Al12F by Materials Project

Mg16Al12F crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a single-bond geometry to two equivalent Mg, four Al, and one F atom. Both Mg–Mg bond lengths are 3.02 Å. There are two shorter (2.92 Å) and two longer (2.96 Å) Mg–Al bond lengths. The Mg–F bond length is 2.05 Å. In the second Mg site, Mg is bonded in a 7-coordinate geometry to three Mg and twelve Al atoms. There are one shorter (3.15 Å) and two longer (3.23 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.05–3.38 Å. In the third Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.07–3.11 Å. There are a spread of Mg–Al bond distances ranging from 2.92–3.21 Å. In the fourth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. Both Mg–Mg bond lengths are 2.98 Å. There are four shorter (3.02 Å) and two longer (3.20 Å) Mg–Al bond lengths. In the fifth Mg site, Mg is bonded in a single-bond geometry to five Mg, four Al, and one F atom. There are a spread of Mg–Mg bond distances ranging from 3.11–3.26 Å. There are a spread of Mg–Al bond distances ranging from 2.92–3.09 Å. The Mg–F bond length is 2.15 Å. In the sixth Mg site, Mg is bonded in a 4-coordinate geometry to five Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.10–3.32 Å. There are a spread of Mg–Al bond distances ranging from 2.96–3.15 Å. In the seventh Mg site, Mg is bonded in a 1-coordinate geometry to six Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.10–3.21 Å. There are a spread of Mg–Al bond distances ranging from 2.85–3.14 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.01 Å) and one longer (3.05 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.00–3.19 Å. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. The Mg–Mg bond length is 3.09 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.10 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.99–3.13 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a distorted single-bond geometry to five Mg, three Al, and one F atom. There are two shorter (2.69 Å) and one longer (2.72 Å) Al–Al bond lengths. The Al–F bond length is 2.46 Å. In the second Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. Both Al–Al bond lengths are 2.77 Å. In the third Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.70 Å) and one longer (2.79 Å) Al–Al bond lengths. In the fourth Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are one shorter (2.68 Å) and one longer (2.81 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are one shorter (2.74 Å) and one longer (2.76 Å) Al–Al bond lengths. In the sixth Al site, Al is bonded in a 10-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.72 Å. In the seventh Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. The Al–Al bond length is 2.79 Å. F is bonded in a 3-coordinate geometry to three Mg and one Al atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16Al12In by Materials Project

Mg16InAl12 is gamma-brass-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 11-coordinate geometry to four Mg, one In, and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.04–3.15 Å. The Mg–In bond length is 3.50 Å. There are a spread of Mg–Al bond distances ranging from 3.07–3.13 Å. In the second Mg site, Mg is bonded in a 1-coordinate geometry to three Mg, one In, and six Al atoms. There are two shorter (3.07 Å) and one longer (3.11 Å) Mg–Mg bond lengths. The Mg–In bond length is 3.07 Å. There are a spread of Mg–Al bond distances ranging from 3.09–3.12 Å. In the third Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.13–3.19 Å. There are a spread of Mg–Al bond distances ranging from 2.92–3.16 Å. In the fourth Mg site, Mg is bonded in a 12-coordinate geometry to four Mg and twelve Al atoms. Both Mg–Mg bond lengths are 3.19 Å. There are a spread of Mg–Al bond distances ranging from 3.16–3.24 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one In, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.06–3.22 Å. The Mg–In bond length is 3.16 Å. There are a spread of Mg–Al bond distances ranging from 2.91–3.24 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are three shorter (3.14 Å) and one longer (3.17 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 2.91–3.19 Å. In the seventh Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one In, and five Al atoms. There are one shorter (3.15 Å) and two longer (3.17 Å) Mg–Mg bond lengths. The Mg–In bond length is 3.15 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.22 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.04 Å) and one longer (3.06 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.09–3.15 Å. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one In, and five Al atoms. The Mg–Mg bond length is 3.13 Å. The Mg–In bond length is 3.15 Å. There are a spread of Mg–Al bond distances ranging from 2.93–3.21 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.91–3.14 Å. In is bonded in a 10-coordinate geometry to eight Mg and five Al atoms. There are a spread of In–Al bond distances ranging from 2.94–3.31 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.70 Å) and two longer (2.75 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a distorted q6 geometry to seven Mg, one In, and three Al atoms. Both Al–Al bond lengths are 2.73 Å. In the third Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one In, and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.73–2.76 Å. In the fourth Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one In, and three Al atoms. There are one shorter (2.68 Å) and one longer (2.80 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.76 Å. In the sixth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.72 Å. In the seventh Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.78 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16Al12Hg by Materials Project

Mg16HgAl12 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 11-coordinate geometry to four Mg, one Hg, and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.04–3.12 Å. The Mg–Hg bond length is 3.45 Å. There are a spread of Mg–Al bond distances ranging from 3.07–3.11 Å. In the second Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.09–3.14 Å. There are a spread of Mg–Al bond distances ranging from 2.94–3.16 Å. In the third Mg site, Mg is bonded in a 1-coordinate geometry to five Mg, one Hg, and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.07–3.37 Å. The Mg–Hg bond length is 3.03 Å. There are a spread of Mg–Al bond distances ranging from 3.06–3.18 Å. In the fourth Mg site, Mg is bonded in a 1-coordinate geometry to four Mg and twelve Al atoms. Both Mg–Mg bond lengths are 3.18 Å. There are a spread of Mg–Al bond distances ranging from 3.12–3.28 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Hg, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.06–3.26 Å. The Mg–Hg bond length is 3.11 Å. There are a spread of Mg–Al bond distances ranging from 2.88–3.18 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.11–3.16 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.25 Å. In the seventh Mg site, Mg is bonded in a 4-coordinate geometry to six Mg, one Hg, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.15–3.19 Å. The Mg–Hg bond length is 3.05 Å. There are a spread of Mg–Al bond distances ranging from 2.88–3.21 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.06 Å) and one longer (3.07 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.05–3.14 Å. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg, one Hg, and five Al atoms. The Mg–Mg bond length is 3.17 Å. The Mg–Hg bond length is 3.08 Å. There are a spread of Mg–Al bond distances ranging from 2.93–3.21 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.91–3.14 Å. Hg is bonded in a 10-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.86 Å) and two longer (2.97 Å) Hg–Al bond lengths. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.71 Å) and two longer (2.73 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Hg, and three Al atoms. Both Al–Al bond lengths are 2.75 Å. In the third Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.70–2.74 Å. In the fourth Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Hg, and three Al atoms. There are one shorter (2.70 Å) and one longer (2.77 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.79 Å. In the sixth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.69 Å. In the seventh Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.74 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16Al12Ga by Materials Project

Mg16GaAl12 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 11-coordinate geometry to four Mg, one Ga, and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.03–3.14 Å. The Mg–Ga bond length is 3.37 Å. There are a spread of Mg–Al bond distances ranging from 3.07–3.13 Å. In the second Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.11–3.18 Å. There are a spread of Mg–Al bond distances ranging from 2.92–3.14 Å. In the third Mg site, Mg is bonded in a 1-coordinate geometry to five Mg, one Ga, and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.06–3.42 Å. The Mg–Ga bond length is 2.99 Å. There are a spread of Mg–Al bond distances ranging from 3.04–3.22 Å. In the fourth Mg site, Mg is bonded in a 12-coordinate geometry to four Mg and twelve Al atoms. Both Mg–Mg bond lengths are 3.18 Å. There are a spread of Mg–Al bond distances ranging from 3.17–3.22 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Ga, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.05–3.20 Å. The Mg–Ga bond length is 3.12 Å. There are a spread of Mg–Al bond distances ranging from 2.88–3.15 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.12–3.16 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.18 Å. In the seventh Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Ga, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.11–3.21 Å. The Mg–Ga bond length is 3.06 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.14 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. Both Mg–Mg bond lengths are 3.04 Å. There are a spread of Mg–Al bond distances ranging from 3.08–3.11 Å. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg, one Ga, and five Al atoms. The Mg–Mg bond length is 3.15 Å. The Mg–Ga bond length is 3.13 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.24 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.90–3.13 Å. Ga is bonded in a 10-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.80 Å) and two longer (2.88 Å) Ga–Al bond lengths. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.71 Å) and two longer (2.75 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Ga, and three Al atoms. Both Al–Al bond lengths are 2.74 Å. In the third Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are one shorter (2.72 Å) and two longer (2.75 Å) Al–Al bond lengths. In the fourth Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Ga, and three Al atoms. There are one shorter (2.69 Å) and one longer (2.76 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.74 Å. In the sixth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.70 Å. In the seventh Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.76 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pr2Al19Co6 by Materials Project

Pr2Co6Al19 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 12-coordinate geometry to two Co and thirteen Al atoms. There are one shorter (3.39 Å) and one longer (3.44 Å) Pr–Co bond lengths. There are a spread of Pr–Al bond distances ranging from 3.07–3.30 Å. In the second Pr site, Pr is bonded in a 12-coordinate geometry to two Co and thirteen Al atoms. There are one shorter (3.36 Å) and one longer (3.45 Å) Pr–Co bond lengths. There are a spread of Pr–Al bond distances ranging from 3.05–3.40 Å. There are four inequivalent Co sites. In the first Co site, Co is bonded in a 8-coordinate geometry to two Pr and eight Al atoms. There are a spread of Co–Al bond distances ranging from 2.42–2.50 Å. In the second Co site, Co is bonded in a 8-coordinate geometry to two Pr and eight Al atoms. There are a spread of Co–Al bond distances ranging from 2.41–2.53 Å. In the third Co site, Co is bonded in a 9-coordinate geometry to nine Al atoms. There are a spread of Co–Al bond distances ranging from 2.33–2.62 Å. In the fourth Co site, Co is bonded in a 9-coordinate geometry to nine Al atoms. There are a spread of Co–Al bond distances ranging from 2.35–2.67 Å. There are eleven inequivalent Al sites. In the first Al site, Al is bonded in a distorted bent 150 degrees geometry to two equivalent Co atoms. In the second Al site, Al is bonded in a 3-coordinate geometry to two Pr, three Co, and seven Al atoms. There are a spread of Al–Al bond distances ranging from 2.65–3.04 Å. In the third Al site, Al is bonded in a distorted bent 150 degrees geometry to one Pr, two equivalent Co, and two equivalent Al atoms. Both Al–Al bond lengths are 2.91 Å. In the fourth Al site, Al is bonded in a 2-coordinate geometry to two Pr, two Co, and one Al atom. The Al–Al bond length is 2.60 Å. In the fifth Al site, Al is bonded in a 3-coordinate geometry to two Pr, three Co, and five Al atoms. There are a spread of Al–Al bond distances ranging from 2.61–2.90 Å. In the sixth Al site, Al is bonded in a 4-coordinate geometry to one Pr, four Co, and two Al atoms. In the seventh Al site, Al is bonded in a 4-coordinate geometry to one Pr, four Co, and two Al atoms. In the eighth Al site, Al is bonded in a 2-coordinate geometry to two Pr, two Co, and six Al atoms. There are one shorter (2.93 Å) and one longer (2.98 Å) Al–Al bond lengths. In the ninth Al site, Al is bonded in a 2-coordinate geometry to two Pr, two Co, and eight Al atoms. There are a spread of Al–Al bond distances ranging from 2.73–2.87 Å. In the tenth Al site, Al is bonded in a 3-coordinate geometry to three Co and two Al atoms. In the eleventh Al site, Al is bonded in a distorted bent 150 degrees geometry to one Pr, two equivalent Co, and two equivalent Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16Al13 by Materials Project

Mg16Al13 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 12-coordinate geometry to four Mg and twelve Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.13–3.17 Å. There are a spread of Mg–Al bond distances ranging from 3.17–3.22 Å. In the second Mg site, Mg is bonded in a 12-coordinate geometry to six Mg and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.01–3.17 Å. There are a spread of Mg–Al bond distances ranging from 2.84–3.14 Å. In the third Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.05 Å) and one longer (3.06 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.06–3.14 Å. In the fourth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.07–3.17 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.22 Å. In the fifth Mg site, Mg is bonded in a 1-coordinate geometry to three Mg and seven Al atoms. Both Mg–Mg bond lengths are 3.06 Å. There are a spread of Mg–Al bond distances ranging from 2.98–3.13 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.05–3.16 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.16 Å. In the seventh Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.08–3.16 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.17 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. The Mg–Mg bond length is 2.99 Å. There are two shorter (3.05 Å) and four longer (3.11 Å) Mg–Al bond lengths. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. The Mg–Mg bond length is 3.17 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.21 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.87–3.13 Å. There are eight inequivalent Al sites. In the first Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.69–2.77 Å. In the second Al site, Al is bonded in a distorted q6 geometry to seven Mg and four Al atoms. There are a spread of Al–Al bond distances ranging from 2.69–2.79 Å. In the third Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.70 Å) and one longer (2.77 Å) Al–Al bond lengths. In the fourth Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. Both Al–Al bond lengths are 2.93 Å. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.74 Å. In the sixth Al site, Al is bonded in a 11-coordinate geometry to seven Mg and four Al atoms. There are a spread of Al–Al bond distances ranging from 2.70–2.75 Å. In the seventh Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. In the eighth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16ScAl12 by Materials Project

Mg16ScAl12 is gamma-brass-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.09–3.20 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.16 Å. In the second Mg site, Mg is bonded in a 10-coordinate geometry to three Mg, one Sc, and six Al atoms. There are two shorter (3.05 Å) and one longer (3.16 Å) Mg–Mg bond lengths. The Mg–Sc bond length is 3.06 Å. There are a spread of Mg–Al bond distances ranging from 3.07–3.14 Å. In the third Mg site, Mg is bonded in a 11-coordinate geometry to four Mg, one Sc, and six Al atoms. There are two shorter (3.03 Å) and one longer (3.17 Å) Mg–Mg bond lengths. The Mg–Sc bond length is 3.53 Å. There are a spread of Mg–Al bond distances ranging from 3.07–3.13 Å. In the fourth Mg site, Mg is bonded in a 1-coordinate geometry to four Mg and twelve Al atoms. Both Mg–Mg bond lengths are 3.11 Å. There are a spread of Mg–Al bond distances ranging from 3.15–3.26 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Sc, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.06–3.16 Å. The Mg–Sc bond length is 3.14 Å. There are a spread of Mg–Al bond distances ranging from 2.92–3.22 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Sc, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.12–3.17 Å. The Mg–Sc bond length is 3.20 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.19 Å. In the seventh Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are two shorter (3.15 Å) and one longer (3.21 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 2.90–3.16 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.04 Å) and one longer (3.06 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.05–3.15 Å. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. The Mg–Mg bond length is 3.12 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.22 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Sc, and five Al atoms. The Mg–Sc bond length is 3.20 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.18 Å. Sc is bonded in a 12-coordinate geometry to eight Mg and five Al atoms. There are a spread of Sc–Al bond distances ranging from 2.91–3.06 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Sc, and three Al atoms. There are one shorter (2.70 Å) and two longer (2.77 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. Both Al–Al bond lengths are 2.80 Å. In the third Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Sc, and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.69–2.78 Å. In the fourth Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Sc, and three Al atoms. There are one shorter (2.72 Å) and one longer (2.76 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.68 Å) and one longer (2.77 Å) Al–Al bond lengths. In the sixth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.74 Å. In the seventh Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16ZrAl12 by Materials Project

Mg16ZrAl12 is gamma-brass-derived structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 10-coordinate geometry to three Mg, one Zr, and six Al atoms. There are two shorter (3.05 Å) and one longer (3.16 Å) Mg–Mg bond lengths. The Mg–Zr bond length is 3.05 Å. There are four shorter (3.08 Å) and two longer (3.14 Å) Mg–Al bond lengths. In the second Mg site, Mg is bonded in a 1-coordinate geometry to four Mg and twelve Al atoms. There are two shorter (3.11 Å) and one longer (3.18 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.12–3.31 Å. In the third Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.09–3.20 Å. There are a spread of Mg–Al bond distances ranging from 2.91–3.17 Å. In the fourth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg, one Zr, and six Al atoms. Both Mg–Mg bond lengths are 3.02 Å. The Mg–Zr bond length is 3.49 Å. There are a spread of Mg–Al bond distances ranging from 3.05–3.14 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Zr, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.06–3.17 Å. The Mg–Zr bond length is 3.12 Å. There are a spread of Mg–Al bond distances ranging from 2.91–3.24 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Zr, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.10–3.17 Å. The Mg–Zr bond length is 3.17 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.21 Å. In the seventh Mg site, Mg is bonded in a 3-coordinate geometry to eight Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.15–3.42 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.15 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to five Mg and six Al atoms. There are one shorter (3.03 Å) and one longer (3.07 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.03–3.16 Å. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. The Mg–Mg bond length is 3.12 Å. There are a spread of Mg–Al bond distances ranging from 2.91–3.24 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Zr, and five Al atoms. The Mg–Zr bond length is 3.20 Å. There are a spread of Mg–Al bond distances ranging from 2.87–3.18 Å. Zr is bonded in a 12-coordinate geometry to eight Mg and five Al atoms. There are a spread of Zr–Al bond distances ranging from 2.88–3.03 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.70 Å) and two longer (2.79 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 10-coordinate geometry to seven Mg, one Zr, and three Al atoms. Both Al–Al bond lengths are 2.77 Å. In the third Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Zr, and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.67–2.79 Å. In the fourth Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Zr, and three Al atoms. There are one shorter (2.72 Å) and one longer (2.74 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.68 Å) and one longer (2.76 Å) Al–Al bond lengths. In the sixth Al site, Al is bonded in a distorted q6 geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.72 Å. In the seventh Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16Al12H by Materials Project

Mg16Al12H crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a single-bond geometry to two equivalent Mg, four Al, and one H atom. Both Mg–Mg bond lengths are 3.08 Å. There are two shorter (2.91 Å) and two longer (3.06 Å) Mg–Al bond lengths. The Mg–H bond length is 1.97 Å. In the second Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.02–3.19 Å. There are a spread of Mg–Al bond distances ranging from 3.03–3.16 Å. In the third Mg site, Mg is bonded in a 6-coordinate geometry to three Mg and twelve Al atoms. Both Mg–Mg bond lengths are 3.19 Å. There are a spread of Mg–Al bond distances ranging from 3.07–3.35 Å. In the fourth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.08–3.16 Å. There are a spread of Mg–Al bond distances ranging from 2.96–3.14 Å. In the fifth Mg site, Mg is bonded in a distorted single-bond geometry to four Mg, four Al, and one H atom. There are a spread of Mg–Mg bond distances ranging from 3.04–3.15 Å. There are a spread of Mg–Al bond distances ranging from 2.90–3.16 Å. The Mg–H bond length is 2.19 Å. In the sixth Mg site, Mg is bonded in a 11-coordinate geometry to four Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.11–3.28 Å. There are a spread of Mg–Al bond distances ranging from 2.95–3.09 Å. In the seventh Mg site, Mg is bonded in a 12-coordinate geometry to four Mg and five Al atoms. There are two shorter (3.13 Å) and one longer (3.14 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 2.88–3.14 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.02 Å) and one longer (3.05 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.01–3.16 Å. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. The Mg–Mg bond length is 3.10 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.13 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.96–3.13 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a single-bond geometry to five Mg, three Al, and one H atom. There are one shorter (2.70 Å) and two longer (2.77 Å) Al–Al bond lengths. The Al–H bond length is 1.89 Å. In the second Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. Both Al–Al bond lengths are 2.74 Å. In the third Al site, Al is bonded in a distorted q6 geometry to seven Mg and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.73–2.75 Å. In the fourth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.69 Å) and one longer (2.79 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are one shorter (2.71 Å) and one longer (2.75 Å) Al–Al bond lengths. In the sixth Al site, Al is bonded in a 10-coordinate geometry to eight Mg and three Al atoms. In the seventh Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. The Al–Al bond length is 2.75 Å. H is bonded in a tetrahedral geometry to three Mg and one Al atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16Al12Br by Materials Project

Mg16Al12Br crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are two shorter (3.01 Å) and two longer (3.11 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.04–3.12 Å. In the second Mg site, Mg is bonded in a distorted single-bond geometry to three Mg, six Al, and one Br atom. There are two shorter (3.10 Å) and one longer (3.15 Å) Mg–Mg bond lengths. There are four shorter (3.07 Å) and two longer (3.11 Å) Mg–Al bond lengths. The Mg–Br bond length is 3.01 Å. In the third Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.08–3.15 Å. There are a spread of Mg–Al bond distances ranging from 3.00–3.15 Å. In the fourth Mg site, Mg is bonded in a 1-coordinate geometry to four Mg and twelve Al atoms. Both Mg–Mg bond lengths are 3.20 Å. There are a spread of Mg–Al bond distances ranging from 2.99–3.33 Å. In the fifth Mg site, Mg is bonded in a 1-coordinate geometry to four Mg, four Al, and one Br atom. There are a spread of Mg–Mg bond distances ranging from 3.14–3.28 Å. There are a spread of Mg–Al bond distances ranging from 2.95–2.99 Å. The Mg–Br bond length is 2.90 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.08–3.20 Å. There are a spread of Mg–Al bond distances ranging from 2.91–3.33 Å. In the seventh Mg site, Mg is bonded in a 3-coordinate geometry to three Mg, five Al, and one Br atom. The Mg–Mg bond length is 3.27 Å. There are a spread of Mg–Al bond distances ranging from 2.88–3.20 Å. The Mg–Br bond length is 3.33 Å. In the eighth Mg site, Mg is bonded in a 11-coordinate geometry to four Mg and seven Al atoms. There are one shorter (3.06 Å) and one longer (3.10 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.00–3.32 Å. In the ninth Mg site, Mg is bonded in a 1-coordinate geometry to three Mg, five Al, and one Br atom. The Mg–Mg bond length is 3.13 Å. There are a spread of Mg–Al bond distances ranging from 3.03–3.26 Å. The Mg–Br bond length is 3.08 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.90–3.13 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 10-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.71 Å) and two longer (2.77 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 9-coordinate geometry to five Mg, three Al, and one Br atom. Both Al–Al bond lengths are 2.72 Å. The Al–Br bond length is 3.11 Å. In the third Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.68–2.75 Å. In the fourth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.69 Å) and one longer (2.74 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.69 Å) and one longer (2.84 Å) Al–Al bond lengths. In the sixth Al site, Al is bonded in a 12-coordinate geometry to nine Mg and three Al atoms. In the seventh Al site, Al is bonded in a distorted q6 geometry to seven Mg and three Al atoms. The Al–Al bond length is 2.77 Å. Br is bonded in a 5-coordinate geometry to seven Mg and one Al atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg16Al12Zn by Materials Project

Mg16ZnAl12 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.04–3.16 Å. There are a spread of Mg–Al bond distances ranging from 2.94–3.15 Å. In the second Mg site, Mg is bonded in a 11-coordinate geometry to four Mg, one Zn, and six Al atoms. There are two shorter (3.03 Å) and one longer (3.14 Å) Mg–Mg bond lengths. The Mg–Zn bond length is 3.25 Å. There are a spread of Mg–Al bond distances ranging from 3.05–3.10 Å. In the third Mg site, Mg is bonded in a 12-coordinate geometry to four Mg and twelve Al atoms. There are two shorter (3.17 Å) and one longer (3.20 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.15–3.23 Å. In the fourth Mg site, Mg is bonded in a 12-coordinate geometry to five Mg, one Zn, and six Al atoms. There are two shorter (3.06 Å) and two longer (3.35 Å) Mg–Mg bond lengths. The Mg–Zn bond length is 2.99 Å. There are a spread of Mg–Al bond distances ranging from 3.02–3.26 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Zn, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.05–3.22 Å. The Mg–Zn bond length is 3.13 Å. There are a spread of Mg–Al bond distances ranging from 2.87–3.10 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.12–3.16 Å. There are a spread of Mg–Al bond distances ranging from 2.89–3.20 Å. In the seventh Mg site, Mg is bonded in a 12-coordinate geometry to six Mg, one Zn, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.12–3.20 Å. The Mg–Zn bond length is 2.99 Å. There are a spread of Mg–Al bond distances ranging from 2.88–3.16 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. There are one shorter (3.04 Å) and one longer (3.05 Å) Mg–Mg bond lengths. There are a spread of Mg–Al bond distances ranging from 3.07–3.13 Å. In the ninth Mg site, Mg is bonded in a 3-coordinate geometry to seven Mg, one Zn, and five Al atoms. The Mg–Mg bond length is 3.16 Å. The Mg–Zn bond length is 3.12 Å. There are a spread of Mg–Al bond distances ranging from 2.88–3.24 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.90–3.12 Å. Zn is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.74 Å) and two longer (2.81 Å) Zn–Al bond lengths. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a distorted q6 geometry to eight Mg and three Al atoms. There are one shorter (2.71 Å) and two longer (2.74 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Zn, and three Al atoms. Both Al–Al bond lengths are 2.75 Å. In the third Al site, Al is bonded in a 10-coordinate geometry to seven Mg and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.70–2.75 Å. In the fourth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.69 Å) and one longer (2.74 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.70 Å) and one longer (2.74 Å) Al–Al bond lengths. In the sixth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. In the seventh Al site, Al is bonded in a 11-coordinate geometry to seven Mg, one Zn, and three Al atoms. The Al–Al bond length is 2.72 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na(Mg4Al3)4 by Materials Project

Na(Mg4Al3)4 is Bergman Structure: Mg32(Al,Zn)49 Bergman-like structured and crystallizes in the monoclinic Cm space group. The structure is three-dimensional. Na is bonded in a 12-coordinate geometry to eight Mg and five Al atoms. There are a spread of Na–Mg bond distances ranging from 3.09–3.64 Å. There are a spread of Na–Al bond distances ranging from 3.01–3.18 Å. There are ten inequivalent Mg sites. In the first Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.08–3.17 Å. There are a spread of Mg–Al bond distances ranging from 2.92–3.18 Å. In the second Mg site, Mg is bonded in a 12-coordinate geometry to four Mg and twelve Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.13–3.15 Å. There are a spread of Mg–Al bond distances ranging from 3.15–3.22 Å. In the third Mg site, Mg is bonded in a 10-coordinate geometry to one Na, three Mg, and six Al atoms. Both Mg–Mg bond lengths are 3.06 Å. There are a spread of Mg–Al bond distances ranging from 3.06–3.14 Å. In the fourth Mg site, Mg is bonded in a 11-coordinate geometry to one Na, four Mg, and six Al atoms. Both Mg–Mg bond lengths are 3.06 Å. There are a spread of Mg–Al bond distances ranging from 3.09–3.11 Å. In the fifth Mg site, Mg is bonded in a 12-coordinate geometry to one Na, six Mg, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.07–3.20 Å. There are a spread of Mg–Al bond distances ranging from 2.93–3.25 Å. In the sixth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.15–3.17 Å. There are a spread of Mg–Al bond distances ranging from 2.92–3.19 Å. In the seventh Mg site, Mg is bonded in a 12-coordinate geometry to one Na, six Mg, and five Al atoms. There are a spread of Mg–Mg bond distances ranging from 3.15–3.18 Å. There are a spread of Mg–Al bond distances ranging from 2.91–3.22 Å. In the eighth Mg site, Mg is bonded in a 10-coordinate geometry to four Mg and six Al atoms. Both Mg–Mg bond lengths are 3.06 Å. There are a spread of Mg–Al bond distances ranging from 3.06–3.13 Å. In the ninth Mg site, Mg is bonded in a 12-coordinate geometry to seven Mg and five Al atoms. The Mg–Mg bond length is 3.13 Å. There are a spread of Mg–Al bond distances ranging from 2.91–3.20 Å. In the tenth Mg site, Mg is bonded in a 12-coordinate geometry to one Na, six Mg, and five Al atoms. There are a spread of Mg–Al bond distances ranging from 2.95–3.18 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are one shorter (2.69 Å) and two longer (2.77 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a 11-coordinate geometry to one Na, seven Mg, and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.72–2.77 Å. In the third Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. There are a spread of Al–Al bond distances ranging from 2.70–2.78 Å. In the fourth Al site, Al is bonded in a distorted q6 geometry to one Na, seven Mg, and three Al atoms. There are one shorter (2.69 Å) and one longer (2.79 Å) Al–Al bond lengths. In the fifth Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms. The Al–Al bond length is 2.77 Å. In the sixth Al site, Al is bonded in a 11-coordinate geometry to one Na, seven Mg, and three Al atoms. In the seventh Al site, Al is bonded in a 11-coordinate geometry to eight Mg and three Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ta2Al3V4C3 by Materials Project

Ta2V4Al3C3 is H-Phase-derived structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are four inequivalent Ta sites. In the first Ta site, Ta is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All Ta–Al bond lengths are 2.84 Å. All Ta–C bond lengths are 2.16 Å. In the second Ta site, Ta is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All Ta–Al bond lengths are 2.89 Å. All Ta–C bond lengths are 2.18 Å. In the third Ta site, Ta is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All Ta–Al bond lengths are 2.88 Å. All Ta–C bond lengths are 2.17 Å. In the fourth Ta site, Ta is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All Ta–Al bond lengths are 2.84 Å. All Ta–C bond lengths are 2.16 Å. There are eight inequivalent V sites. In the first V site, V is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All V–Al bond lengths are 2.78 Å. All V–C bond lengths are 2.04 Å. In the second V site, V is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All V–Al bond lengths are 2.78 Å. All V–C bond lengths are 2.04 Å. In the third V site, V is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All V–Al bond lengths are 2.72 Å. All V–C bond lengths are 2.04 Å. In the fourth V site, V is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All V–Al bond lengths are 2.77 Å. All V–C bond lengths are 2.05 Å. In the fifth V site, V is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All V–Al bond lengths are 2.78 Å. All V–C bond lengths are 2.04 Å. In the sixth V site, V is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All V–Al bond lengths are 2.72 Å. All V–C bond lengths are 2.04 Å. In the seventh V site, V is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All V–Al bond lengths are 2.75 Å. All V–C bond lengths are 2.04 Å. In the eighth V site, V is bonded in a 3-coordinate geometry to three equivalent Al and three equivalent C atoms. All V–Al bond lengths are 2.74 Å. All V–C bond lengths are 2.04 Å. There are six inequivalent Al sites. In the first Al site, Al is bonded to three equivalent Ta, three equivalent V, and six equivalent Al atoms to form distorted AlTa3Al6V3 cuboctahedra that share corners with six equivalent AlTa3Al6V3 cuboctahedra, corners with six CTa6 octahedra, edges with six equivalent AlTa3Al6V3 cuboctahedra, edges with six CTa6 octahedra, and faces with six equivalent AlTa3Al6V3 cuboctahedra. The corner-sharing octahedra tilt angles range from 16–19°. All Al–Al bond lengths are 2.99 Å. In the second Al site, Al is bonded to six V and six equivalent Al atoms to form AlAl6V6 cuboctahedra that share corners with six equivalent AlAl6V6 cuboctahedra, corners with six CTa3V3 octahedra, edges with six equivalent AlAl6V6 cuboctahedra, edges with six CTa3V3 octahedra, and faces with six equivalent AlAl6V6 cuboctahedra. The corner-sharing octahedra tilt angles range from 19–20°. All Al–Al bond lengths are 2.99 Å. In the third Al site, Al is bonded to six V and six equivalent Al atoms to form AlAl6V6 cuboctahedra that share corners with six equivalent AlAl6V6 cuboctahedra, corners with six CTa3V3 octahedra, edges with six equivalent AlAl6V6 cuboctahedra, edges with six CTa3V3 octahedra, and faces with six equivalent AlAl6V6 cuboctahedra. The corner-sharing octahedra tilt angles range from 19–20°. All Al–Al bond lengths are 2.99 Å. In the fourth Al site, Al is bonded to three equivalent Ta, three equivalent V, and six equivalent Al atoms to form distorted AlTa3Al6V3 cuboctahedra that share corners with six equivalent AlTa3Al6V3 cuboctahedra, corners with six CTa6 octahedra, edges with six equivalent AlTa3Al6V3 cuboctahedra, edges with six CTa6 octahedra, and faces with six equivalent AlTa3Al6V3 cuboctahedra. The corner-sharing octahedra tilt angles range from 16–18°. All Al–Al bond lengths are 2.99 Å. In the fifth Al site, Al is bonded to three equivalent Ta, three equivalent V, and six equivalent Al atoms to form AlTa3Al6V3 cuboctahedra that share corners with six equivalent AlTa3Al6V3 cuboctahedra, corners with six CTa3V3 octahedra, edges with six equivalent AlTa3Al6V3 cuboctahedra, edges with six CTa3V3 octahedra, and faces with six equivalent AlTa3Al6V3 cuboctahedra. The corner-sharing octahedra tilt angles range from 16–19°. All Al–Al bond lengths are 2.99 Å. In the sixth Al site, Al is bonded to three equivalent Ta, three equivalent V, and six equivalent Al atoms to form distorted AlTa3Al6V3 cuboctahedra that share corners with six equivalent AlTa3Al6V3 cuboctahedra, corners with six CTa3V3 octahedra, edges with six equivalent AlTa3Al6V3 cuboctahedra, edges with six CTa3V3 octahedra, and faces with six equivalent AlTa3Al6V3 cuboctahedra. The corner-sharing octahedra tilt angles range from 16–19°. All Al–Al bond lengths are 2.99 Å. There are six inequivalent C sites. In the first C site, C is bonded to six Ta atoms to form CTa6 octahedra that share corners with six AlTa3Al6V3 cuboctahedra, edges with six AlTa3Al6V3 cuboctahedra, and edges with six equivalent CTa6 octahedra. In the second C site, C is bonded to three equivalent Ta and three equivalent V atoms to form CTa3V3 octahedra that share corners with six AlTa3Al6V3 cuboctahedra, edges with six AlTa3Al6V3 cuboctahedra, and edges with six equivalent CTa3V3 octahedra. In the third C site, C is bonded to three equivalent Ta and three equivalent V atoms to form CTa3V3 octahedra that share corners with six AlTa3Al6V3 cuboctahedra, edges with six AlTa3Al6V3 cuboctahedra, and edges with six equivalent CTa3V3 octahedra. In the fourth C site, C is bonded to six V atoms to form CV6 octahedra that share corners with six AlTa3Al6V3 cuboctahedra, edges with six AlTa3Al6V3 cuboctahedra, and edges with six equivalent CV6 octahedra. In the fifth C site, C is bonded to six V atoms to form CV6 octahedra that share corners with six AlAl6V6 cuboctahedra, edges with six AlAl6V6 cuboctahedra, and edges with six equivalent CV6 octahedra. In the sixth C site, C is bonded to six V atoms to form CV6 octahedra that share corners with six AlTa3Al6V3 cuboctahedra, edges with six AlTa3Al6V3 cuboctahedra, and edges with six equivalent CV6 octahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GdAl22O34 by Materials Project

GdAl22O34 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Gd is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Gd–O bond distances ranging from 2.41–2.87 Å. There are twelve inequivalent Al sites. In the first Al site, Al is bonded to six O atoms to form AlO6 octahedra that share corners with six AlO4 tetrahedra and edges with six AlO6 octahedra. There are a spread of Al–O bond distances ranging from 1.90–1.92 Å. In the second Al site, Al is bonded to six O atoms to form AlO6 octahedra that share corners with five AlO4 tetrahedra and edges with five AlO6 octahedra. There are a spread of Al–O bond distances ranging from 1.82–2.09 Å. In the third Al site, Al is bonded to six O atoms to form AlO6 octahedra that share corners with five AlO4 tetrahedra and edges with five AlO6 octahedra. There are a spread of Al–O bond distances ranging from 1.81–2.09 Å. In the fourth Al site, Al is bonded to six O atoms to form AlO6 octahedra that share corners with five AlO4 tetrahedra and edges with five AlO6 octahedra. There are a spread of Al–O bond distances ranging from 1.81–2.08 Å. In the fifth Al site, Al is bonded to six O atoms to form AlO6 octahedra that share corners with six AlO4 tetrahedra and edges with six AlO6 octahedra. There are a spread of Al–O bond distances ranging from 1.90–1.92 Å. In the sixth Al site, Al is bonded to four O atoms to form corner-sharing AlO4 tetrahedra. The corner-sharing octahedra tilt angles range from 53–59°. There is two shorter (1.81 Å) and two longer (1.83 Å) Al–O bond length. In the seventh Al site, Al is bonded to four O atoms to form AlO4 tetrahedra that share corners with six AlO6 octahedra and a cornercorner with one AlO4 tetrahedra. The corner-sharing octahedra tilt angles range from 53–58°. There are a spread of Al–O bond distances ranging from 1.74–1.81 Å. In the eighth Al site, Al is bonded to four O atoms to form AlO4 tetrahedra that share corners with six AlO6 octahedra and a cornercorner with one AlO4 tetrahedra. The corner-sharing octahedra tilt angles range from 53–57°. There are a spread of Al–O bond distances ranging from 1.73–1.82 Å. In the ninth Al site, Al is bonded to six O atoms to form AlO6 octahedra that share corners with five AlO4 tetrahedra and edges with five AlO6 octahedra. There are a spread of Al–O bond distances ranging from 1.81–2.06 Å. In the tenth Al site, Al is bonded to six O atoms to form AlO6 octahedra that share corners with five AlO4 tetrahedra and edges with five AlO6 octahedra. There are a spread of Al–O bond distances ranging from 1.85–1.99 Å. In the eleventh Al site, Al is bonded to six O atoms to form AlO6 octahedra that share corners with five AlO4 tetrahedra and edges with five AlO6 octahedra. There are a spread of Al–O bond distances ranging from 1.82–2.08 Å. In the twelfth Al site, Al is bonded to four O atoms to form corner-sharing AlO4 tetrahedra. The corner-sharing octahedra tilt angles range from 52–60°. There are a spread of Al–O bond distances ranging from 1.81–1.83 Å. There are seventeen inequivalent O sites. In the first O site, O is bonded in a trigonal non-coplanar geometry to three Al atoms. In the second O site, O is bonded in a rectangular see-saw-like geometry to four Al atoms. In the third O site, O is bonded in a rectangular see-saw-like geometry to four Al atoms. In the fourth O site, O is bonded in a rectangular see-saw-like geometry to four Al atoms. In the fifth O site, O is bonded in a rectangular see-saw-like geometry to four Al atoms. In the sixth O site, O is bonded in a 3-coordinate geometry to one Gd and three Al atoms. In the seventh O site, O is bonded in a distorted trigonal planar geometry to one Gd and three Al atoms. In the eighth O site, O is bonded in a trigonal planar geometry to three Al atoms. In the ninth O site, O is bonded in a trigonal planar geometry to three Al atoms. In the tenth O site, O is bonded in a 3-coordinate geometry to one Gd and two Al atoms. In the eleventh O site, O is bonded in a distorted trigonal planar geometry to one Gd and three Al atoms. In the twelfth O site, O is bonded in a trigonal planar geometry to three Al atoms. In the thirteenth O site, O is bonded in a trigonal planar geometry to three Al atoms. In the fourteenth O site, O is bonded in a rectangular see-saw-like geometry to four Al atoms. In the fifteenth O site, O is bonded in a rectangular see-saw-like geometry to four Al atoms. In the sixteenth O site, O is bonded in a rectangular see-saw-like geometry to four Al atoms. In the seventeenth O site, O is bonded in a rectangular see-saw-like geometry to four Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sm4Al23Ni6 by Materials Project

Sm4Ni6Al23 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Sm sites. In the first Sm site, Sm is bonded in a 11-coordinate geometry to two equivalent Ni and thirteen Al atoms. Both Sm–Ni bond lengths are 3.28 Å. There are a spread of Sm–Al bond distances ranging from 3.07–3.39 Å. In the second Sm site, Sm is bonded in a 11-coordinate geometry to two equivalent Ni and thirteen Al atoms. Both Sm–Ni bond lengths are 3.27 Å. There are a spread of Sm–Al bond distances ranging from 3.08–3.34 Å. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded in a 7-coordinate geometry to two equivalent Sm and seven Al atoms. There are a spread of Ni–Al bond distances ranging from 2.34–2.53 Å. In the second Ni site, Ni is bonded in a 9-coordinate geometry to nine Al atoms. There are a spread of Ni–Al bond distances ranging from 2.41–2.76 Å. In the third Ni site, Ni is bonded in a 8-coordinate geometry to two equivalent Sm and eight Al atoms. There are a spread of Ni–Al bond distances ranging from 2.38–2.55 Å. There are twelve inequivalent Al sites. In the first Al site, Al is bonded to two Sm, two equivalent Ni, and eight Al atoms to form distorted face-sharing AlSm2Al8Ni2 cuboctahedra. There are a spread of Al–Al bond distances ranging from 2.72–3.00 Å. In the second Al site, Al is bonded in a 12-coordinate geometry to four Sm and eight Al atoms. There are a spread of Al–Al bond distances ranging from 2.89–3.18 Å. In the third Al site, Al is bonded in a 3-coordinate geometry to two equivalent Sm, three Ni, and one Al atom. In the fourth Al site, Al is bonded in a 3-coordinate geometry to one Sm, three equivalent Ni, and six Al atoms. There are a spread of Al–Al bond distances ranging from 2.62–2.77 Å. In the fifth Al site, Al is bonded in a distorted single-bond geometry to three Sm, one Ni, and four Al atoms. Both Al–Al bond lengths are 2.91 Å. In the sixth Al site, Al is bonded in a distorted trigonal non-coplanar geometry to one Sm, three Ni, and one Al atom. In the seventh Al site, Al is bonded in a 3-coordinate geometry to three equivalent Sm and three equivalent Ni atoms. In the eighth Al site, Al is bonded in a distorted bent 150 degrees geometry to three Sm, two Ni, and three Al atoms. In the ninth Al site, Al is bonded in a 2-coordinate geometry to three Sm, two equivalent Ni, and one Al atom. In the tenth Al site, Al is bonded in a distorted bent 150 degrees geometry to two equivalent Sm, two Ni, and five Al atoms. In the eleventh Al site, Al is bonded in a distorted trigonal planar geometry to three Ni and two Al atoms. In the twelfth Al site, Al is bonded in a 12-coordinate geometry to four equivalent Sm and six Al atoms.

36 MATERIALS SCIENCE↗