Materials Data on Ti2CuSb3 by Materials Project
Ti2CuSb3 crystallizes in the tetragonal P-4m2 space group. The structure is three-dimensional. Ti4+ is bonded in a 7-coordinate geometry to seven Sb3- atoms. There are a spread of Ti–Sb bond distances ranging from 2.85–3.00 Å. Cu1+ is bonded in a square co-planar geometry to four equivalent Sb3- atoms. All Cu–Sb bond lengths are 2.69 Å. There are two inequivalent Sb3- sites. In the first Sb3- site, Sb3- is bonded in a 5-coordinate geometry to five equivalent Ti4+ atoms. In the second Sb3- site, Sb3- is bonded to four equivalent Ti4+ and four equivalent Cu1+ atoms to form a mixture of distorted corner and face-sharing SbTi4Cu4 hexagonal bipyramids.
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