Materials Data on CaCd(WO4)2 by Materials Project
CaCd(WO4)2 is Zircon-derived structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.43–2.51 Å. There are two inequivalent W6+ sites. In the first W6+ site, W6+ is bonded in a tetrahedral geometry to four O2- atoms. All W–O bond lengths are 1.83 Å. In the second W6+ site, W6+ is bonded in a tetrahedral geometry to four O2- atoms. All W–O bond lengths are 1.83 Å. Cd2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Cd–O bond distances ranging from 2.42–2.51 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ca2+, one W6+, and one Cd2+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Ca2+, one W6+, and one Cd2+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Ca2+, one W6+, and one Cd2+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Ca2+, one W6+, and one Cd2+ atom.