Materials Data on Th2N2O by Materials Project
Th2N2O crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Th4+ is bonded in a 7-coordinate geometry to four equivalent N3- and three equivalent O2- atoms. There are three shorter (2.35 Å) and one longer (2.38 Å) Th–N bond lengths. All Th–O bond lengths are 2.74 Å. N3- is bonded to four equivalent Th4+ atoms to form NTh4 tetrahedra that share corners with six equivalent OTh6 octahedra, corners with six equivalent NTh4 tetrahedra, edges with three equivalent OTh6 octahedra, and edges with three equivalent NTh4 tetrahedra. The corner-sharing octahedra tilt angles range from 20–56°. O2- is bonded to six equivalent Th4+ atoms to form OTh6 octahedra that share corners with twelve equivalent NTh4 tetrahedra, edges with six equivalent OTh6 octahedra, and edges with six equivalent NTh4 tetrahedra.