Materials Data on V4SiSb2 by Materials Project
V4SiSb2 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. V+2.50+ is bonded to two equivalent Si4- and four equivalent Sb3- atoms to form a mixture of distorted corner, edge, and face-sharing VSi2Sb4 octahedra. The corner-sharing octahedra tilt angles range from 21–69°. Both V–Si bond lengths are 2.49 Å. There are a spread of V–Sb bond distances ranging from 2.69–2.85 Å. Si4- is bonded in a 10-coordinate geometry to eight equivalent V+2.50+ and two equivalent Si4- atoms. Both Si–Si bond lengths are 2.35 Å. Sb3- is bonded in a 8-coordinate geometry to eight equivalent V+2.50+ atoms.
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