Materials Data on CuAgPO4 by Materials Project
AgCuPO4 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. Ag1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ag–O bond distances ranging from 2.34–2.87 Å. Cu2+ is bonded to five O2- atoms to form CuO5 trigonal bipyramids that share corners with five equivalent PO4 tetrahedra, corners with two equivalent CuO5 trigonal bipyramids, and an edgeedge with one CuO5 trigonal bipyramid. There are a spread of Cu–O bond distances ranging from 1.95–2.19 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with five equivalent CuO5 trigonal bipyramids. There are a spread of P–O bond distances ranging from 1.55–1.58 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one Ag1+, two equivalent Cu2+, and one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Cu2+ and one P5+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Ag1+, one Cu2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Ag1+ and one P5+ atom.