Materials Data on BAs5(Pb3O10)2 by Materials Project

Abstract

BAs5(Pb3O10)2 crystallizes in the tetragonal P-4 space group. The structure is three-dimensional. B3+ is bonded to four equivalent O2- atoms to form BO4 tetrahedra that share corners with four equivalent AsO4 tetrahedra. All B–O bond lengths are 1.48 Å. There are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Pb–O bond distances ranging from 2.41–3.07 Å. 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 2.39–2.95 Å. There are two inequivalent As5+ sites. In the first As5+ site, As5+ is bonded to four O2- atoms to form AsO4 tetrahedra that share a cornercorner with one BO4 tetrahedra. There are a spread of As–O bond distances ranging from 1.70–1.77 Å. In the second As5+ site, As5+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All As–O bond lengths are 1.73 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two Pb2+ and one As5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one B3+, one Pb2+, and one As5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to three Pb2+ and one As5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two Pb2+ and one As5+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Pb2+ and one As5+ atom.