Materials Data on TlAsO6 by Materials Project

Abstract

TlAsO6 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Tl is bonded to six O atoms to form TlO6 octahedra that share corners with four equivalent AsO4 tetrahedra. There are a spread of Tl–O bond distances ranging from 2.25–2.37 Å. As is bonded to four O atoms to form AsO4 tetrahedra that share corners with four equivalent TlO6 octahedra. The corner-sharing octahedra tilt angles range from 56–60°. There are a spread of As–O bond distances ranging from 1.70–1.75 Å. There are six inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Tl and one As atom. In the second O site, O is bonded in a single-bond geometry to one Tl atom. In the third O site, O is bonded in a bent 120 degrees geometry to one Tl and one As atom. In the fourth O site, O is bonded in a single-bond geometry to one Tl atom. In the fifth O site, O is bonded in a distorted bent 120 degrees geometry to one Tl and one As atom. In the sixth O site, O is bonded in a bent 120 degrees geometry to one Tl and one As atom.