Materials Data on LaSiPt by Materials Project
LaPtSi crystallizes in the tetragonal I4_1md space group. The structure is three-dimensional. La2+ is bonded to six equivalent Si4- atoms to form a mixture of distorted edge, corner, and face-sharing LaSi6 pentagonal pyramids. There are four shorter (3.25 Å) and two longer (3.28 Å) La–Si bond lengths. Pt2+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Pt–Si bond lengths are 2.46 Å. Si4- is bonded in a distorted trigonal planar geometry to six equivalent La2+ and three equivalent Pt2+ atoms.
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