Materials Data on U3Cu3Sb4 by Materials Project
U3Cu3Sb4 crystallizes in the cubic I-43d space group. The structure is three-dimensional. U3+ is bonded in a 12-coordinate geometry to four equivalent Cu1+ and eight equivalent Sb3- atoms. All U–Cu bond lengths are 2.90 Å. There are four shorter (3.25 Å) and four longer (3.31 Å) U–Sb bond lengths. Cu1+ is bonded in a 4-coordinate geometry to four equivalent U3+ and four equivalent Sb3- atoms. All Cu–Sb bond lengths are 2.66 Å. Sb3- is bonded in a 9-coordinate geometry to six equivalent U3+ and three equivalent Cu1+ atoms.
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