Materials Data on BaPbO3 by Materials Project

Abstract

BaPbO3 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Ba2+ is bonded in a 12-coordinate geometry to eight O2- atoms. There are four shorter (2.79 Å) and four longer (3.05 Å) Ba–O bond lengths. Pb4+ is bonded to six O2- atoms to form corner-sharing PbO6 octahedra. The corner-sharing octahedra tilt angles range from 0–24°. There are four shorter (2.21 Å) and two longer (2.22 Å) Pb–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ba2+ and two equivalent Pb4+ atoms. In the second O2- site, O2- is bonded to four equivalent Ba2+ and two equivalent Pb4+ atoms to form a mixture of distorted edge and corner-sharing OBa4Pb2 octahedra. The corner-sharing octahedral tilt angles are 0°.