Materials Data on Al2PbO4 by Materials Project

Abstract

PbAl2O4 crystallizes in the orthorhombic Ama2 space group. The structure is three-dimensional. Al3+ is bonded to four O2- atoms to form corner-sharing AlO4 tetrahedra. There are a spread of Al–O bond distances ranging from 1.76–1.79 Å. Pb2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Pb–O bond distances ranging from 2.33–2.84 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Al3+ and one Pb2+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Al3+ and two equivalent Pb2+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Al3+ and one Pb2+ atom.