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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on HfZn2 by Materials Project

HfZn2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Hf is bonded in a 12-coordinate geometry to four equivalent Hf and twelve equivalent Zn atoms. All Hf–Hf bond lengths are 3.19 Å. All Hf–Zn bond lengths are 3.05 Å. Zn is bonded to six equivalent Hf and six equivalent Zn atoms to form a mixture of edge, face, and corner-sharing ZnHf6Zn6 cuboctahedra. All Zn–Zn bond lengths are 2.60 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfZn3 by Materials Project

HfZn3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Hf is bonded to twelve Zn atoms to form a mixture of corner and face-sharing HfZn12 cuboctahedra. There are six shorter (2.81 Å) and six longer (2.92 Å) Hf–Zn bond lengths. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded in a 12-coordinate geometry to four equivalent Hf and eight equivalent Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.73–3.04 Å. In the second Zn site, Zn is bonded in a 12-coordinate geometry to four equivalent Hf and eight equivalent Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.73–3.04 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfZn by Materials Project

HfZn is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Hf is bonded in a body-centered cubic geometry to eight equivalent Zn atoms. All Hf–Zn bond lengths are 2.86 Å. Zn is bonded in a body-centered cubic geometry to eight equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfZn16 by Materials Project

HfZn16 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Hf is bonded in a 9-coordinate geometry to fifteen Zn atoms. There are a spread of Hf–Zn bond distances ranging from 2.83–3.01 Å. There are seven inequivalent Zn sites. In the first Zn site, Zn is bonded in a 1-coordinate geometry to one Hf and ten Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.74–3.13 Å. In the second Zn site, Zn is bonded to two equivalent Hf and ten Zn atoms to form ZnHf2Zn10 cuboctahedra that share corners with two equivalent ZnHf2Zn10 cuboctahedra and faces with six equivalent ZnZn12 cuboctahedra. There are a spread of Zn–Zn bond distances ranging from 2.64–2.87 Å. In the third Zn site, Zn is bonded in a 9-coordinate geometry to one Hf and twelve Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.54–3.12 Å. In the fourth Zn site, Zn is bonded in a 12-coordinate geometry to one Hf and eleven Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.62–3.14 Å. In the fifth Zn site, Zn is bonded in a 11-coordinate geometry to one Hf and ten Zn atoms. There are a spread of Zn–Zn bond distances ranging from 2.53–2.90 Å. In the sixth Zn site, Zn is bonded in a 12-coordinate geometry to one Hf and eleven Zn atoms. There are one shorter (2.62 Å) and one longer (2.66 Å) Zn–Zn bond lengths. In the seventh Zn site, Zn is bonded to twelve Zn atoms to form distorted ZnZn12 cuboctahedra that share edges with three equivalent ZnZn12 cuboctahedra and faces with four ZnHf2Zn10 cuboctahedra. The Zn–Zn bond length is 2.89 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfZn22 by Materials Project

HfZn22 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Hf is bonded in a 4-coordinate geometry to sixteen Zn atoms. There are twelve shorter (3.01 Å) and four longer (3.06 Å) Hf–Zn bond lengths. There are four inequivalent Zn sites. In the first Zn site, Zn is bonded to twelve Zn atoms to form a mixture of distorted corner, edge, and face-sharing ZnZn12 cuboctahedra. There are a spread of Zn–Zn bond distances ranging from 2.51–2.84 Å. In the second Zn site, Zn is bonded in a 2-coordinate geometry to two equivalent Hf and twelve equivalent Zn atoms. All Zn–Zn bond lengths are 2.96 Å. In the third Zn site, Zn is bonded to twelve Zn atoms to form a mixture of corner, edge, and face-sharing ZnZn12 cuboctahedra. All Zn–Zn bond lengths are 2.85 Å. In the fourth Zn site, Zn is bonded to one Hf and eleven Zn atoms to form a mixture of distorted corner, edge, and face-sharing ZnHfZn11 cuboctahedra. There are a spread of Zn–Zn bond distances ranging from 2.53–2.97 Å.

36 MATERIALS SCIENCE↗