Materials Data on SmSiPt by Materials Project
SmPtSi crystallizes in the tetragonal I4_1md space group. The structure is three-dimensional. Sm2+ is bonded in a 6-coordinate geometry to six equivalent Si4- atoms. There are four shorter (3.18 Å) and two longer (3.23 Å) Sm–Si bond lengths. Pt2+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. There are two shorter (2.41 Å) and one longer (2.42 Å) Pt–Si bond lengths. Si4- is bonded in a distorted trigonal planar geometry to six equivalent Sm2+ and three equivalent Pt2+ atoms.
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