Cu2WO4 crystallizes in the triclinic P-1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 5-coordinate geometry to one O(3), one O(4), one O(5), one O(7), and one O(8) atom. In the second W site, W(2) is bonded in a trigonal bipyramidal geometry to one O(1), one O(4), one O(5), one O(6), and one O(7) atom. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 2-coordinate geometry to one O(2), one O(4), and one O(8) atom. In the second Cu site, Cu(2) is bonded in a linear geometry to one O(1) and one O(2) atom. In the third Cu site, Cu(3) is bonded in a linear geometry to one O(2) and one O(5) atom. In the fourth Cu site, Cu(4) is bonded in a distorted T-shaped geometry to one O(3) and two equivalent O(6) atoms. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one W(2) and one Cu(2) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Cu(1), one Cu(2), and one Cu(3) atom. In the third O site, O(3) is bonded in a water-like geometry to one W(1) and one Cu(4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Cu(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Cu(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one W(2) and two equivalent Cu(4) atoms. In the seventh O site, O(7) is bonded in a water-like geometry to one W(1) and one W(2) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one W(1) and one Cu(1) atom.
Cu2WO4 crystallizes in the triclinic P-1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 5-coordinate geometry to one O(3), one O(4), one O(5), one O(7), and one O(8) atom. The W(1)-O(3) bond length is 1.82 Å. The W(1)-O(4) bond length is 2.01 Å. The W(1)-O(5) bond length is 1.99 Å. The W(1)-O(7) bond length is 2.03 Å. The W(1)-O(8) bond length is 1.83 Å. In the second W site, W(2) is bonded in a trigonal bipyramidal geometry to one O(1), one O(4), one O(5), one O(6), and one O(7) atom. The W(2)-O(1) bond length is 1.81 Å. The W(2)-O(4) bond length is 1.94 Å. The W(2)-O(5) bond length is 2.05 Å. The W(2)-O(6) bond length is 1.85 Å. The W(2)-O(7) bond length is 1.95 Å. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 2-coordinate geometry to one O(2), one O(4), and one O(8) atom. The Cu(1)-O(2) bond length is 1.85 Å. The Cu(1)-O(4) bond length is 2.58 Å. The Cu(1)-O(8) bond length is 1.88 Å. In the second Cu site, Cu(2) is bonded in a linear geometry to one O(1) and one O(2) atom. The Cu(2)-O(1) bond length is 1.84 Å. The Cu(2)-O(2) bond length is 1.83 Å. In the third Cu site, Cu(3) is bonded in a linear geometry to one O(2) and one O(5) atom. The Cu(3)-O(2) bond length is 1.85 Å. The Cu(3)-O(5) bond length is 1.94 Å. In the fourth Cu site, Cu(4) is bonded in a distorted T-shaped geometry to one O(3) and two equivalent O(6) atoms. The Cu(4)-O(3) bond length is 1.87 Å. There is one shorter (1.92 Å) and one longer (2.28 Å) Cu(4)-O(6) bond length. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one W(2) and one Cu(2) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Cu(1), one Cu(2), and one Cu(3) atom. In the third O site, O(3) is bonded in a water-like geometry to one W(1) and one Cu(4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one W(1), one W(2), and one Cu(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Cu(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one W(2) and two equivalent Cu(4) atoms. In the seventh O site, O(7) is bonded in a water-like geometry to one W(1) and one W(2) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one W(1) and one Cu(1) atom.