Materials Data on NaCrH8(NF3)2 by Materials Project
(NH4)2NaCrF6 is High-temperature superconductor-derived structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional and consists of eight ammonium molecules and one NaCrF6 framework. In the NaCrF6 framework, Na1+ is bonded to six equivalent F1- atoms to form NaF6 octahedra that share corners with six equivalent CrF6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Na–F bond lengths are 2.37 Å. Cr3+ is bonded to six equivalent F1- atoms to form CrF6 octahedra that share corners with six equivalent NaF6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Cr–F bond lengths are 1.95 Å. F1- is bonded in a linear geometry to one Na1+ and one Cr3+ atom.
36 MATERIALS SCIENCE↗