Materials Data on Si3Pt2 by Materials Project
Pt2Si3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pt2- is bonded in a 8-coordinate geometry to seven Si+1.33+ atoms. There are a spread of Pt–Si bond distances ranging from 2.44–2.65 Å. There are two inequivalent Si+1.33+ sites. In the first Si+1.33+ site, Si+1.33+ is bonded to four equivalent Pt2- atoms to form a mixture of corner and edge-sharing SiPt4 tetrahedra. In the second Si+1.33+ site, Si+1.33+ is bonded in a 6-coordinate geometry to six equivalent Pt2- atoms.
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