Materials Data on Ba(LaI4)2 by Materials Project
Ba(LaI4)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Ba2+ is bonded to twelve I1- atoms to form distorted face-sharing BaI12 cuboctahedra. There are a spread of Ba–I bond distances ranging from 3.59–4.19 Å. La3+ is bonded in a 8-coordinate geometry to eight I1- atoms. There are a spread of La–I bond distances ranging from 3.31–3.37 Å. There are three inequivalent I1- sites. In the first I1- site, I1- is bonded in a distorted water-like geometry to two equivalent Ba2+ and two equivalent La3+ atoms. In the second I1- site, I1- is bonded in a distorted trigonal non-coplanar geometry to one Ba2+ and two equivalent La3+ atoms. In the third I1- site, I1- is bonded in a distorted trigonal planar geometry to one Ba2+ and two equivalent La3+ atoms.