Materials Data on SiPt5Pb by Materials Project
Pt5PbSi crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. there are two inequivalent Pt+1.20- sites. In the first Pt+1.20- site, Pt+1.20- is bonded to eight equivalent Pt+1.20- and four equivalent Pb2+ atoms to form PtPt8Pb4 cuboctahedra that share corners with four equivalent PtPt8Pb4 cuboctahedra, faces with four equivalent PtPt8Pb4 cuboctahedra, and faces with four equivalent PbPt12 cuboctahedra. All Pt–Pt bond lengths are 2.99 Å. All Pt–Pb bond lengths are 2.85 Å. In the second Pt+1.20- site, Pt+1.20- is bonded in a distorted water-like geometry to two equivalent Pt+1.20-, two equivalent Pb2+, and two equivalent Si4+ atoms. Both Pt–Pb bond lengths are 2.99 Å. Both Pt–Si bond lengths are 2.48 Å. Pb2+ is bonded to twelve Pt+1.20- atoms to form PbPt12 cuboctahedra that share corners with four equivalent PbPt12 cuboctahedra, faces with four equivalent PtPt8Pb4 cuboctahedra, and faces with four equivalent PbPt12 cuboctahedra. Si4+ is bonded in a body-centered cubic geometry to eight equivalent Pt+1.20- atoms.