Materials Data on Th2N7OF15 by Materials Project

Abstract

(Th2F9)2N2(NF)6(N3OF3)2 crystallizes in the cubic P2_13 space group. The structure is zero-dimensional and consists of four ammonia molecules, twelve monofluoroamine molecules, four N3OF3 clusters, and four Th2F9 clusters. In each N3OF3 cluster, N+1.29+ is bonded in a water-like geometry to one O2- and one F1- atom. The N–O bond length is 1.48 Å. The N–F bond length is 1.38 Å. O2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent N+1.29+ atoms. F1- is bonded in a single-bond geometry to one N+1.29+ atom. In each Th2F9 cluster, Th4+ is bonded in a 6-coordinate geometry to six F1- atoms. There are three shorter (2.15 Å) and three longer (2.40 Å) Th–F bond lengths. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Th4+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Th4+ atom. The F–Th bond length is 2.15 Å. In the third F1- site, F1- is bonded in a water-like geometry to two equivalent Th4+ atoms.