DOE OSTI2020
ScNF6N2 is High-temperature superconductor-derived structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional and consists of eight ammonia molecules and one ScNF6 framework. In the ScNF6 framework, Sc3+ is bonded to six equivalent F1- atoms to form ScF6 octahedra that share corners with six equivalent NF6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Sc–F bond lengths are 2.07 Å. N1+ is bonded to six equivalent F1- atoms to form NF6 octahedra that share corners with six equivalent ScF6 octahedra. The corner-sharing octahedral tilt angles are 0°. All N–F bond lengths are 1.84 Å. F1- is bonded in a linear geometry to one Sc3+ and one N1+ atom.