Materials Data on TmSb(PbO3)2 by Materials Project

Abstract

TmSb(PbO3)2 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Tm3+ is bonded to six O2- atoms to form TmO6 octahedra that share corners with six equivalent SbO6 octahedra. The corner-sharing octahedra tilt angles range from 16–25°. There are a spread of Tm–O bond distances ranging from 2.22–2.24 Å. Pb2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Pb–O bond distances ranging from 2.53–3.03 Å. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with six equivalent TmO6 octahedra. The corner-sharing octahedra tilt angles range from 16–25°. There are a spread of Sb–O bond distances ranging from 2.01–2.03 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Tm3+, three equivalent Pb2+, and one Sb5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Tm3+, two equivalent Pb2+, and one Sb5+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Tm3+, two equivalent Pb2+, and one Sb5+ atom.