Materials Data on B2OsW2 by Materials Project

Abstract

W2OsB2 crystallizes in the orthorhombic Pnnm space group. The structure is three-dimensional. there are two inequivalent W4+ sites. In the first W4+ site, W4+ is bonded in a 4-coordinate geometry to five B3- atoms. There are four shorter (2.30 Å) and one longer (2.75 Å) W–B bond lengths. In the second W4+ site, W4+ is bonded in a 7-coordinate geometry to seven B3- atoms. There are a spread of W–B bond distances ranging from 2.33–2.61 Å. Os2- is bonded in a 3-coordinate geometry to three B3- atoms. There are two shorter (2.19 Å) and one longer (2.46 Å) Os–B bond lengths. There are two inequivalent B3- sites. In the first B3- site, B3- is bonded in a 9-coordinate geometry to six W4+, one Os2-, and two B3- atoms. There is one shorter (1.87 Å) and one longer (1.92 Å) B–B bond length. In the second B3- site, B3- is bonded in a 9-coordinate geometry to six W4+, two equivalent Os2-, and one B3- atom.