Materials Data on CuAsPbO4 by Materials Project

Abstract

CuPbAsO4 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Cu1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.85 Å) and one longer (1.86 Å) Cu–O bond length. Pb2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Pb–O bond distances ranging from 2.40–2.98 Å. As5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of As–O bond distances ranging from 1.72–1.75 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cu1+, one Pb2+, and one As5+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Pb2+ and one As5+ atom. In the third O2- site, O2- is bonded in a distorted water-like geometry to one Cu1+, one Pb2+, and one As5+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Pb2+ and one As5+ atom.