Materials Data on Tb2Pt by Materials Project
PtTb2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Tb sites. In the first Tb site, Tb is bonded to four equivalent Pt atoms to form a mixture of edge and corner-sharing TbPt4 tetrahedra. There are one shorter (2.90 Å) and three longer (2.97 Å) Tb–Pt bond lengths. In the second Tb site, Tb is bonded in a 3-coordinate geometry to three equivalent Pt atoms. There are one shorter (2.83 Å) and two longer (3.07 Å) Tb–Pt bond lengths. Pt is bonded in a 7-coordinate geometry to seven Tb atoms.
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