Materials Data on CrPt4 by Materials Project
CrPt4 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Cr2+ is bonded in a distorted hexagonal planar geometry to six equivalent Pt+0.50- atoms. All Cr–Pt bond lengths are 2.61 Å. There are two inequivalent Pt+0.50- sites. In the first Pt+0.50- site, Pt+0.50- is bonded in a 12-coordinate geometry to three equivalent Cr2+ and three equivalent Pt+0.50- atoms. All Pt–Pt bond lengths are 2.88 Å. In the second Pt+0.50- site, Pt+0.50- is bonded to twelve Pt+0.50- atoms to form a mixture of corner, edge, and face-sharing PtPt12 cuboctahedra. There are six shorter (2.77 Å) and three longer (2.86 Å) Pt–Pt bond lengths.
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