Materials Data on BaSiO3 by Materials Project

Abstract

BaSiO3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ba–O bond distances ranging from 2.64–3.29 Å. In the second Ba2+ site, Ba2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ba–O bond distances ranging from 2.66–2.91 Å. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form corner-sharing SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.61–1.71 Å. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form corner-sharing SiO4 tetrahedra. There are a spread of Si–O bond distances ranging from 1.62–1.71 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ba2+ and two Si4+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one Si4+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to three Ba2+ and one Si4+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Ba2+ and two Si4+ atoms. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one Si4+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one Si4+ atom.