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Materials Data on YbAlAu by Materials Project

YbAuAl crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Yb is bonded in a 5-coordinate geometry to five equivalent Au and six equivalent Al atoms. There are a spread of Yb–Au bond distances ranging from 3.01–3.16 Å. There are a spread of Yb–Al bond distances ranging from 3.14–3.40 Å. Au is bonded in a 9-coordinate geometry to five equivalent Yb and four equivalent Al atoms. There are a spread of Au–Al bond distances ranging from 2.66–2.75 Å. Al is bonded to six equivalent Yb and four equivalent Au atoms to form a mixture of distorted corner, edge, and face-sharing AlYb6Au4 tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on YbAl7Au3 by Materials Project

YbAu3Al7 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Yb is bonded in a 6-coordinate geometry to six equivalent Au and twelve equivalent Al atoms. All Yb–Au bond lengths are 3.26 Å. There are six shorter (3.36 Å) and six longer (3.37 Å) Yb–Al bond lengths. Au is bonded in a 9-coordinate geometry to two equivalent Yb and seven Al atoms. There are a spread of Au–Al bond distances ranging from 2.61–2.68 Å. There are two inequivalent Al sites. In the first Al site, Al is bonded in a distorted trigonal planar geometry to two equivalent Yb and three equivalent Au atoms. In the second Al site, Al is bonded in a trigonal planar geometry to three equivalent Au atoms.

36 MATERIALS SCIENCE↗