Materials Data on Tm2WO6 by Materials Project

Abstract

Tm2WO6 crystallizes in the monoclinic P2/c space group. The structure is three-dimensional. there are three inequivalent Tm3+ sites. In the first Tm3+ site, Tm3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Tm–O bond distances ranging from 2.24–2.52 Å. In the second Tm3+ site, Tm3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tm–O bond distances ranging from 2.21–2.40 Å. In the third Tm3+ site, Tm3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Tm–O bond distances ranging from 2.29–2.44 Å. W6+ is bonded in a distorted octahedral geometry to six O2- atoms. There are a spread of W–O bond distances ranging from 1.88–2.08 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to three Tm3+ and one W6+ atom to form a mixture of edge and corner-sharing OTm3W tetrahedra. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Tm3+ and one W6+ atom. In the third O2- site, O2- is bonded to three Tm3+ and one W6+ atom to form distorted corner-sharing OTm3W tetrahedra. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Tm3+ and one W6+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Tm3+ and one W6+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to two Tm3+ and one W6+ atom.