Materials Data on EuAg(WO4)2 by Materials Project
EuAg(WO4)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Eu3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Eu–O bond distances ranging from 2.42–2.65 Å. There are two inequivalent W6+ sites. In the first W6+ site, W6+ is bonded in a distorted octahedral geometry to six O2- atoms. There are a spread of W–O bond distances ranging from 1.82–2.14 Å. In the second W6+ site, W6+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of W–O bond distances ranging from 1.81–2.24 Å. Ag1+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of Ag–O bond distances ranging from 2.39–2.97 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Eu3+, two W6+, and one Ag1+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Eu3+, one W6+, and one Ag1+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one Eu3+, one W6+, and one Ag1+ atom. In the fourth O2- site, O2- is bonded to three W6+ and one Ag1+ atom to form distorted edge-sharing OAgW3 tetrahedra. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Eu3+, one W6+, and one Ag1+ atom.