Materials Data on NaMnCl3 by Materials Project

Abstract

NaMnCl3 is Ilmenite structured and crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Na1+ is bonded to six equivalent Cl1- atoms to form distorted NaCl6 octahedra that share corners with nine equivalent MnCl6 octahedra, edges with three equivalent NaCl6 octahedra, and a faceface with one MnCl6 octahedra. The corner-sharing octahedra tilt angles range from 40–58°. There are three shorter (2.78 Å) and three longer (2.94 Å) Na–Cl bond lengths. Mn2+ is bonded to six equivalent Cl1- atoms to form MnCl6 octahedra that share corners with nine equivalent NaCl6 octahedra, edges with three equivalent MnCl6 octahedra, and a faceface with one NaCl6 octahedra. The corner-sharing octahedra tilt angles range from 40–58°. There are three shorter (2.53 Å) and three longer (2.59 Å) Mn–Cl bond lengths. Cl1- is bonded in a distorted see-saw-like geometry to two equivalent Na1+ and two equivalent Mn2+ atoms.