Materials Data on OsN2 by Materials Project
OsN2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Os6+ is bonded to six N3- atoms to form OsN6 octahedra that share corners with eight equivalent OsN6 octahedra, corners with six NOs3N tetrahedra, and edges with two equivalent OsN6 octahedra. The corner-sharing octahedra tilt angles range from 63–69°. There are a spread of Os–N bond distances ranging from 2.06–2.17 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded to three equivalent Os6+ and one N3- atom to form distorted NOs3N tetrahedra that share corners with three equivalent OsN6 octahedra, corners with thirteen NOs3N tetrahedra, and an edgeedge with one NOs3N tetrahedra. The corner-sharing octahedra tilt angles range from 64–69°. The N–N bond length is 1.43 Å. In the second N3- site, N3- is bonded to three equivalent Os6+ and one N3- atom to form distorted NOs3N tetrahedra that share corners with three equivalent OsN6 octahedra, corners with thirteen NOs3N tetrahedra, and an edgeedge with one NOs3N tetrahedra. The corner-sharing octahedra tilt angles range from 63–65°.