Materials Data on Cd2Cu(PO4)2 by Materials Project
CuCd2(PO4)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Cu2+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.94 Å) and two longer (1.98 Å) Cu–O bond length. Cd2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Cd–O bond distances ranging from 2.28–2.78 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Cd2+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cu2+, one Cd2+, and one P5+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cu2+, one Cd2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Cd2+ and one P5+ atom.