Materials Data on CsLiF2 by Materials Project
CsLiF2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Cs1+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Cs–F bond distances ranging from 3.01–3.41 Å. Li1+ is bonded to four F1- atoms to form a mixture of edge and corner-sharing LiF4 tetrahedra. There are a spread of Li–F bond distances ranging from 1.87–1.94 Å. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted bent 120 degrees geometry to four equivalent Cs1+ and two equivalent Li1+ atoms. In the second F1- site, F1- is bonded in a distorted linear geometry to four equivalent Cs1+ and two equivalent Li1+ atoms. In the third F1- site, F1- is bonded in a distorted L-shaped geometry to four equivalent Cs1+ and two equivalent Li1+ atoms.