Materials Data on Sc(NF2)3 by Materials Project

Abstract

(ScNF5)2(N2)2F2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of two ammonia molecules, one hydrofluoric acid molecule, and one ScNF5 cluster. In the ScNF5 cluster, Sc3+ is bonded in a 2-coordinate geometry to three F1- atoms. There are a spread of Sc–F bond distances ranging from 1.15–2.64 Å. N1+ is bonded in a water-like geometry to two F1- atoms. There is one shorter (1.37 Å) and one longer (1.56 Å) N–F bond length. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a 2-coordinate geometry to one Sc3+ and one F1- atom. The F–F bond length is 1.75 Å. In the second F1- site, F1- is bonded in a distorted single-bond geometry to one N1+ and one F1- atom. In the third F1- site, F1- is bonded in a single-bond geometry to one N1+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Sc3+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one Sc3+ atom.