Cs2WO4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(3) atoms. In the second Cs site, Cs(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(3) atoms. W(1) is bonded in a tetrahedral geometry to one O(1), one O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), and one W(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), and one W(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Cs(1), two equivalent Cs(2), and one W(1) atom.
Cs2WO4 crystallizes in the monoclinic C2/m space group. There are two inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(3) atoms. Both Cs(1)-O(1) bond lengths are 3.44 Å. There is one shorter (3.04 Å) and one longer (3.21 Å) Cs(1)-O(2) bond length. There are two shorter (3.14 Å) and two longer (3.17 Å) Cs(1)-O(3) bond lengths. In the second Cs site, Cs(2) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(3) atoms. There is one shorter (3.02 Å) and one longer (3.12 Å) Cs(2)-O(1) bond length. Both Cs(2)-O(2) bond lengths are 3.45 Å. There are two shorter (3.05 Å) and two longer (3.25 Å) Cs(2)-O(3) bond lengths. W(1) is bonded in a tetrahedral geometry to one O(1), one O(2), and two equivalent O(3) atoms. The W(1)-O(1) bond length is 1.79 Å. The W(1)-O(2) bond length is 1.80 Å. Both W(1)-O(3) bond lengths are 1.79 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), and one W(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent Cs(1), two equivalent Cs(2), and one W(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Cs(1), two equivalent Cs(2), and one W(1) atom.