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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on YMg5 by Materials Project

Mg5Y crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Mg sites. In the first Mg site, Mg is bonded in a 8-coordinate geometry to seven Mg and three equivalent Y atoms. There are a spread of Mg–Mg bond distances ranging from 3.10–3.39 Å. There are two shorter (3.29 Å) and one longer (3.71 Å) Mg–Y bond lengths. In the second Mg site, Mg is bonded in a 8-coordinate geometry to seven Mg and two equivalent Y atoms. There are two shorter (3.03 Å) and two longer (3.19 Å) Mg–Mg bond lengths. Both Mg–Y bond lengths are 3.23 Å. In the third Mg site, Mg is bonded in a distorted q6 geometry to eight Mg and two equivalent Y atoms. Both Mg–Y bond lengths are 3.52 Å. Y is bonded in a 8-coordinate geometry to twelve Mg and two equivalent Y atoms. Both Y–Y bond lengths are 3.68 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YMg5 by Materials Project

Mg5Y crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded in a 12-coordinate geometry to eight Mg and two equivalent Y atoms. All Mg–Mg bond lengths are 3.18 Å. Both Mg–Y bond lengths are 3.31 Å. In the second Mg site, Mg is bonded to nine Mg and three equivalent Y atoms to form MgY3Mg9 cuboctahedra that share corners with nine equivalent MgY3Mg9 cuboctahedra, corners with nine equivalent YMg12 cuboctahedra, edges with six equivalent MgY3Mg9 cuboctahedra, faces with three equivalent YMg12 cuboctahedra, and faces with five equivalent MgY3Mg9 cuboctahedra. All Mg–Mg bond lengths are 3.29 Å. All Mg–Y bond lengths are 3.29 Å. Y is bonded to twelve Mg atoms to form YMg12 cuboctahedra that share corners with eighteen equivalent MgY3Mg9 cuboctahedra, edges with six equivalent YMg12 cuboctahedra, faces with two equivalent YMg12 cuboctahedra, and faces with six equivalent MgY3Mg9 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YMg5 by Materials Project

Mg5Y is Magnesium-derived structured and crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are five inequivalent Mg sites. In the first Mg site, Mg is bonded to twelve Mg atoms to form MgMg12 cuboctahedra that share corners with eighteen MgMg12 cuboctahedra, edges with eight equivalent YY2Mg10 cuboctahedra, edges with ten MgY4Mg8 cuboctahedra, faces with two equivalent YY2Mg10 cuboctahedra, and faces with eighteen MgMg12 cuboctahedra. There are two shorter (3.26 Å) and ten longer (3.27 Å) Mg–Mg bond lengths. In the second Mg site, Mg is bonded to eight Mg and four equivalent Y atoms to form MgY4Mg8 cuboctahedra that share corners with eighteen MgMg12 cuboctahedra, edges with four equivalent YY2Mg10 cuboctahedra, edges with fourteen MgMg12 cuboctahedra, faces with four equivalent YY2Mg10 cuboctahedra, and faces with sixteen MgMg12 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.26–3.31 Å. All Mg–Y bond lengths are 3.28 Å. In the third Mg site, Mg is bonded to ten Mg and two equivalent Y atoms to form MgY2Mg10 cuboctahedra that share corners with eighteen MgMg12 cuboctahedra, edges with eighteen MgMg12 cuboctahedra, faces with six equivalent YY2Mg10 cuboctahedra, and faces with fourteen MgMg12 cuboctahedra. There are two shorter (3.26 Å) and four longer (3.29 Å) Mg–Mg bond lengths. Both Mg–Y bond lengths are 3.31 Å. In the fourth Mg site, Mg is bonded to ten Mg and two equivalent Y atoms to form MgY2Mg10 cuboctahedra that share corners with six equivalent YY2Mg10 cuboctahedra, corners with twelve MgY2Mg10 cuboctahedra, edges with three equivalent YY2Mg10 cuboctahedra, edges with fifteen MgY4Mg8 cuboctahedra, faces with two equivalent YY2Mg10 cuboctahedra, and faces with eighteen MgMg12 cuboctahedra. There are two shorter (3.23 Å) and two longer (3.26 Å) Mg–Mg bond lengths. Both Mg–Y bond lengths are 3.33 Å. In the fifth Mg site, Mg is bonded to ten Mg and two equivalent Y atoms to form MgY2Mg10 cuboctahedra that share corners with six equivalent YY2Mg10 cuboctahedra, corners with twelve MgY2Mg10 cuboctahedra, edges with three equivalent YY2Mg10 cuboctahedra, edges with fifteen MgMg12 cuboctahedra, faces with two equivalent YY2Mg10 cuboctahedra, and faces with eighteen MgMg12 cuboctahedra. Both Mg–Mg bond lengths are 3.26 Å. Both Mg–Y bond lengths are 3.29 Å. Y is bonded to ten Mg and two equivalent Y atoms to form YY2Mg10 cuboctahedra that share corners with six equivalent YY2Mg10 cuboctahedra, corners with twelve MgY2Mg10 cuboctahedra, edges with eighteen MgMg12 cuboctahedra, faces with four equivalent YY2Mg10 cuboctahedra, and faces with sixteen MgMg12 cuboctahedra. Both Y–Y bond lengths are 3.26 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YMg5 by Materials Project

Mg5Y crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are five inequivalent Mg sites. In the first Mg site, Mg is bonded to ten Mg and two equivalent Y atoms to form distorted MgY2Mg10 cuboctahedra that share corners with eighteen MgY2Mg10 cuboctahedra, edges with six equivalent YY2Mg10 cuboctahedra, edges with twelve MgY3Mg9 cuboctahedra, faces with three equivalent YY2Mg10 cuboctahedra, and faces with seventeen MgY2Mg10 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.13–3.49 Å. Both Mg–Y bond lengths are 3.26 Å. In the second Mg site, Mg is bonded to nine Mg and three equivalent Y atoms to form MgY3Mg9 cuboctahedra that share corners with eighteen MgY2Mg10 cuboctahedra, edges with two equivalent YY2Mg10 cuboctahedra, edges with sixteen MgY2Mg10 cuboctahedra, faces with five equivalent YY2Mg10 cuboctahedra, and faces with fifteen MgY2Mg10 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.22–3.31 Å. There are two shorter (3.36 Å) and one longer (3.38 Å) Mg–Y bond lengths. In the third Mg site, Mg is bonded to ten Mg and two equivalent Y atoms to form MgY2Mg10 cuboctahedra that share corners with six equivalent YY2Mg10 cuboctahedra, corners with twelve MgY2Mg10 cuboctahedra, edges with three equivalent YY2Mg10 cuboctahedra, edges with fifteen MgY2Mg10 cuboctahedra, faces with three equivalent YY2Mg10 cuboctahedra, and faces with seventeen MgY2Mg10 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.19–3.37 Å. Both Mg–Y bond lengths are 3.36 Å. In the fourth Mg site, Mg is bonded to eleven Mg and one Y atom to form MgYMg11 cuboctahedra that share corners with eighteen MgY2Mg10 cuboctahedra, edges with four equivalent YY2Mg10 cuboctahedra, edges with fourteen MgY2Mg10 cuboctahedra, faces with four equivalent YY2Mg10 cuboctahedra, and faces with sixteen MgY2Mg10 cuboctahedra. There are two shorter (3.22 Å) and two longer (3.24 Å) Mg–Mg bond lengths. The Mg–Y bond length is 3.25 Å. In the fifth Mg site, Mg is bonded to ten Mg and two equivalent Y atoms to form distorted MgY2Mg10 cuboctahedra that share corners with six equivalent YY2Mg10 cuboctahedra, corners with twelve MgY2Mg10 cuboctahedra, edges with three equivalent YY2Mg10 cuboctahedra, edges with fifteen MgY2Mg10 cuboctahedra, faces with three equivalent YY2Mg10 cuboctahedra, and faces with seventeen MgY2Mg10 cuboctahedra. Both Mg–Mg bond lengths are 3.24 Å. Both Mg–Y bond lengths are 3.30 Å. Y is bonded to ten Mg and two equivalent Y atoms to form YY2Mg10 cuboctahedra that share corners with six equivalent YY2Mg10 cuboctahedra, corners with twelve MgY2Mg10 cuboctahedra, edges with eighteen MgY2Mg10 cuboctahedra, faces with two equivalent YY2Mg10 cuboctahedra, and faces with eighteen MgY2Mg10 cuboctahedra. Both Y–Y bond lengths are 3.24 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YMg5 by Materials Project

Mg5Y crystallizes in the trigonal R32 space group. The structure is three-dimensional. there are two inequivalent Mg sites. In the first Mg site, Mg is bonded to ten Mg and two equivalent Y atoms to form MgY2Mg10 cuboctahedra that share corners with eighteen equivalent MgY2Mg10 cuboctahedra, edges with four equivalent YMg12 cuboctahedra, edges with fourteen MgY2Mg10 cuboctahedra, faces with four equivalent YMg12 cuboctahedra, and faces with sixteen MgY2Mg10 cuboctahedra. There are a spread of Mg–Mg bond distances ranging from 3.23–3.34 Å. Both Mg–Y bond lengths are 3.33 Å. In the second Mg site, Mg is bonded to nine Mg and three equivalent Y atoms to form MgY3Mg9 cuboctahedra that share corners with six equivalent YMg12 cuboctahedra, corners with twelve equivalent MgY3Mg9 cuboctahedra, edges with eighteen MgY2Mg10 cuboctahedra, faces with four equivalent YMg12 cuboctahedra, and faces with sixteen MgY2Mg10 cuboctahedra. All Mg–Mg bond lengths are 3.24 Å. All Mg–Y bond lengths are 3.24 Å. Y is bonded to twelve Mg atoms to form YMg12 cuboctahedra that share corners with six equivalent YMg12 cuboctahedra, corners with twelve equivalent MgY3Mg9 cuboctahedra, edges with six equivalent YMg12 cuboctahedra, edges with twelve equivalent MgY2Mg10 cuboctahedra, and faces with twenty MgY2Mg10 cuboctahedra.

36 MATERIALS SCIENCE↗