Materials Data on Hf2(Ni7B2)3 by Materials Project

Dataset · Sun May 03 04:00:00 EDT 2020

DOI:https://doi.org/10.17188/1685808· OSTI ID:1685808

Hf2(Ni7B2)3 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded to sixteen Ni atoms to form distorted HfNi16 tetrahedra that share edges with six equivalent HfNi16 tetrahedra and faces with four equivalent NiNi12 cuboctahedra. There are four shorter (2.49 Å) and twelve longer (2.90 Å) Hf–Ni bond lengths. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded to twelve equivalent Ni atoms to form NiNi12 cuboctahedra that share faces with eight equivalent HfNi16 tetrahedra. All Ni–Ni bond lengths are 2.54 Å. In the second Ni site, Ni is bonded to one Hf and three equivalent B atoms to form a mixture of distorted edge and corner-sharing NiHfB3 tetrahedra. All Ni–B bond lengths are 2.12 Å. In the third Ni site, Ni is bonded in a distorted bent 150 degrees geometry to two equivalent Hf, one Ni, and two equivalent B atoms. Both Ni–B bond lengths are 2.07 Å. B is bonded in a 8-coordinate geometry to eight Ni atoms.

• Research Organization: LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Contributing Organization: The Materials Project; MIT; UC Berkeley; Duke; U Louvain
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1685808
• Report Number(s): mp-1194313
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
B-Hf-Ni
Hf2(Ni7B2)3
crystal structure