Materials Data on La5CrPb3 by Materials Project

Abstract

La5CrPb3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded to two equivalent Cr and five equivalent Pb atoms to form a mixture of distorted face, edge, and corner-sharing LaCr2Pb5 pentagonal bipyramids. Both La–Cr bond lengths are 3.03 Å. There are a spread of La–Pb bond distances ranging from 3.42–3.78 Å. In the second La site, La is bonded in a 6-coordinate geometry to six equivalent Pb atoms. All La–Pb bond lengths are 3.50 Å. Cr is bonded to six equivalent La atoms to form face-sharing CrLa6 octahedra. Pb is bonded in a 9-coordinate geometry to nine La atoms.