Materials Data on GaBiO3 by Materials Project

Abstract

BiGaO3 crystallizes in the orthorhombic Pcca space group. The structure is three-dimensional. Ga3+ is bonded to four O2- atoms to form GaO4 tetrahedra that share corners with eight equivalent BiO6 octahedra and corners with two equivalent GaO4 tetrahedra. The corner-sharing octahedra tilt angles range from 50–78°. There is two shorter (1.86 Å) and two longer (1.90 Å) Ga–O bond length. Bi3+ is bonded to six O2- atoms to form distorted BiO6 octahedra that share corners with two equivalent BiO6 octahedra, corners with eight equivalent GaO4 tetrahedra, and edges with two equivalent BiO6 octahedra. The corner-sharing octahedral tilt angles are 86°. There are a spread of Bi–O bond distances ranging from 2.22–2.70 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ga3+ and two equivalent Bi3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ga3+ and two equivalent Bi3+ atoms.