Materials Data on Sr7Au3 by Materials Project
Sr7Au3 crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. there are three inequivalent Sr sites. In the first Sr site, Sr is bonded in a distorted trigonal non-coplanar geometry to three equivalent Au atoms. All Sr–Au bond lengths are 3.20 Å. In the second Sr site, Sr is bonded in a distorted L-shaped geometry to two equivalent Au atoms. Both Sr–Au bond lengths are 3.25 Å. In the third Sr site, Sr is bonded in a distorted T-shaped geometry to three equivalent Au atoms. There are one shorter (3.25 Å) and two longer (3.27 Å) Sr–Au bond lengths. Au is bonded in a 6-coordinate geometry to six Sr atoms.
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