Materials Data on TbCsF5 by Materials Project
CsTbF5 crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. Cs1+ is bonded in a 7-coordinate geometry to eleven F1- atoms. There are a spread of Cs–F bond distances ranging from 3.05–3.52 Å. Tb4+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Tb–F bond distances ranging from 2.21–2.32 Å. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to three equivalent Cs1+ and one Tb4+ atom. In the second F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two equivalent Cs1+ and two equivalent Tb4+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to one Cs1+ and two equivalent Tb4+ atoms. In the fourth F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two equivalent Cs1+ and two equivalent Tb4+ atoms.