Materials Data on BaCl2 by Materials Project

Abstract

BaCl2 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine Cl1- atoms. There are six shorter (3.16 Å) and three longer (3.33 Å) Ba–Cl bond lengths. In the second Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine Cl1- atoms. There are three shorter (3.09 Å) and six longer (3.42 Å) Ba–Cl bond lengths. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded to four Ba2+ atoms to form distorted ClBa4 tetrahedra that share corners with ten equivalent ClBa4 tetrahedra, corners with six equivalent ClBa5 trigonal bipyramids, edges with two equivalent ClBa4 tetrahedra, and edges with six equivalent ClBa5 trigonal bipyramids. In the second Cl1- site, Cl1- is bonded to five Ba2+ atoms to form distorted ClBa5 trigonal bipyramids that share corners with six equivalent ClBa4 tetrahedra, corners with ten equivalent ClBa5 trigonal bipyramids, edges with six equivalent ClBa4 tetrahedra, and edges with six equivalent ClBa5 trigonal bipyramids.