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AuTb is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tb is bonded in a body-centered cubic geometry to eight equivalent Au atoms. All Tb–Au bond lengths are 3.14 Å. Au is bonded in a body-centered cubic geometry to eight equivalent Tb atoms.
AuTb is alpha-derived structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Tb is bonded in a 7-coordinate geometry to seven equivalent Au atoms. There are a spread of Tb–Au bond distances ranging from 3.02–3.14 Å. Au is bonded in a 7-coordinate geometry to seven equivalent Tb atoms.