Materials Data on Mg2SiPt by Materials Project

Abstract

Mg2PtSi crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Mg is bonded in a 11-coordinate geometry to four equivalent Mg, four equivalent Pt, and three equivalent Si atoms. There are one shorter (2.84 Å) and three longer (2.88 Å) Mg–Mg bond lengths. There are one shorter (2.86 Å) and three longer (2.87 Å) Mg–Pt bond lengths. All Mg–Si bond lengths are 2.87 Å. Pt is bonded in a 11-coordinate geometry to eight equivalent Mg and three equivalent Si atoms. All Pt–Si bond lengths are 2.49 Å. Si is bonded in a 9-coordinate geometry to six equivalent Mg and three equivalent Pt atoms.