Materials Data on ErGeAu by Materials Project
ErAuGe crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Er is bonded in a 8-coordinate geometry to six equivalent Au and five equivalent Ge atoms. There are three shorter (3.00 Å) and three longer (3.54 Å) Er–Au bond lengths. There are a spread of Er–Ge bond distances ranging from 2.86–3.09 Å. Au is bonded in a 6-coordinate geometry to six equivalent Er, two equivalent Au, and three equivalent Ge atoms. Both Au–Au bond lengths are 3.00 Å. All Au–Ge bond lengths are 2.98 Å. Ge is bonded to five equivalent Er and three equivalent Au atoms to form a mixture of edge and corner-sharing GeEr5Au3 hexagonal bipyramids.
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