K2WO4 crystallizes in the monoclinic C2/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. W(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one W(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one W(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one W(1) atom.
K2WO4 crystallizes in the monoclinic C2/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Both K(1)-O(2) bond lengths are 3.22 Å. There is one shorter (2.68 Å) and one longer (2.85 Å) K(1)-O(3) bond length. There are two shorter (2.76 Å) and two longer (2.91 Å) K(1)-O(1) bond lengths. In the second K site, K(2) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. There is one shorter (2.66 Å) and one longer (2.74 Å) K(2)-O(2) bond length. Both K(2)-O(3) bond lengths are 3.24 Å. There are two shorter (2.77 Å) and two longer (2.93 Å) K(2)-O(1) bond lengths. W(1) is bonded in a tetrahedral geometry to one O(2), one O(3), and two equivalent O(1) atoms. The W(1)-O(2) bond length is 1.79 Å. The W(1)-O(3) bond length is 1.79 Å. Both W(1)-O(1) 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 K(1), two equivalent K(2), and one W(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one W(1) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one W(1) atom.