Materials Data on SbPb4 by Materials Project
Pb4Sb crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 12-coordinate geometry to three equivalent Pb and three equivalent Sb atoms. All Pb–Pb bond lengths are 3.62 Å. All Pb–Sb bond lengths are 3.37 Å. In the second Pb site, Pb is bonded to twelve Pb atoms to form a mixture of face, edge, and corner-sharing PbPb12 cuboctahedra. There are three shorter (3.51 Å) and six longer (3.56 Å) Pb–Pb bond lengths. Sb is bonded in a distorted hexagonal planar geometry to six equivalent Pb atoms.
36 MATERIALS SCIENCE↗