Materials Data on VBi(PbO3)2 by Materials Project

Abstract

Pb2BiVO6 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. V5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of V–O bond distances ranging from 1.69–1.78 Å. There are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.36 Å) and two longer (2.50 Å) Pb–O bond lengths. In the second Pb2+ site, Pb2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Pb–O bond distances ranging from 2.33–2.91 Å. Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.24–2.86 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to one V5+ and one Pb2+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one V5+ and one Pb2+ atom. In the third O2- site, O2- is bonded to two Pb2+ and two equivalent Bi3+ atoms to form a mixture of distorted edge and corner-sharing OBi2Pb2 tetrahedra. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one V5+, two Pb2+, and one Bi3+ atom.