Materials Data on CaWF4 by Materials Project
CaWF4 crystallizes in the tetragonal I-42m space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are four shorter (2.41 Å) and four longer (2.42 Å) Ca–F bond lengths. W2+ is bonded in a square co-planar geometry to four F1- atoms. All W–F bond lengths are 2.15 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a trigonal planar geometry to two equivalent Ca2+ and one W2+ atom. In the second F1- site, F1- is bonded in a trigonal planar geometry to two equivalent Ca2+ and one W2+ atom.
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