Materials Data on Th3Au4 by Materials Project
Th3Au4 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Th is bonded in a 9-coordinate geometry to nine Au atoms. There are a spread of Th–Au bond distances ranging from 3.03–3.42 Å. There are three inequivalent Au sites. In the first Au site, Au is bonded to six equivalent Th atoms to form distorted face-sharing AuTh6 octahedra. In the second Au site, Au is bonded to six equivalent Th atoms to form distorted face-sharing AuTh6 octahedra. In the third Au site, Au is bonded in a 7-coordinate geometry to seven equivalent Th and three equivalent Au atoms. There are one shorter (3.04 Å) and two longer (3.18 Å) Au–Au bond lengths.
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