Materials Data on HfCuSn by Materials Project
HfCuSn crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Hf is bonded in a 12-coordinate geometry to two equivalent Hf, six equivalent Cu, and six equivalent Sn atoms. Both Hf–Hf bond lengths are 3.20 Å. There are three shorter (2.89 Å) and three longer (3.24 Å) Hf–Cu bond lengths. There are three shorter (3.03 Å) and three longer (3.07 Å) Hf–Sn bond lengths. Cu is bonded in a 10-coordinate geometry to six equivalent Hf and four equivalent Sn atoms. There are three shorter (2.62 Å) and one longer (2.82 Å) Cu–Sn bond lengths. Sn is bonded in a 10-coordinate geometry to six equivalent Hf and four equivalent Cu atoms.
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