WOsB4 crystallizes in the hexagonal P-6m2 space group. W(1) is bonded in a 8-coordinate geometry to two equivalent B(2) and six equivalent B(1) atoms. Os(1) is bonded in a 8-coordinate geometry to two equivalent B(1) and six equivalent B(2) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 7-coordinate geometry to three equivalent W(1), one Os(1), and three equivalent B(2) atoms. In the second B site, B(2) is bonded in a 7-coordinate geometry to one W(1), three equivalent Os(1), and three equivalent B(1) atoms.
WOsB4 crystallizes in the hexagonal P-6m2 space group. W(1) is bonded in a 8-coordinate geometry to two equivalent B(2) and six equivalent B(1) atoms. Both W(1)-B(2) bond lengths are 2.25 Å. All W(1)-B(1) bond lengths are 2.30 Å. Os(1) is bonded in a 8-coordinate geometry to two equivalent B(1) and six equivalent B(2) atoms. Both Os(1)-B(1) bond lengths are 2.20 Å. All Os(1)-B(2) bond lengths are 2.27 Å. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 7-coordinate geometry to three equivalent W(1), one Os(1), and three equivalent B(2) atoms. All B(1)-B(2) bond lengths are 1.82 Å. In the second B site, B(2) is bonded in a 7-coordinate geometry to one W(1), three equivalent Os(1), and three equivalent B(1) atoms.