Cu2WO4 crystallizes in the triclinic P-1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form a mixture of distorted corner and edge-sharing WO5 trigonal bipyramids. In the second W site, W(2) is bonded to one O(1), one O(4), one O(5), one O(6), and one O(7) atom to form a mixture of distorted corner and edge-sharing WO5 trigonal bipyramids. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted L-shaped geometry to one O(5) 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 3-coordinate geometry to one O(1), one O(2), and one O(4) 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 distorted T-shaped geometry to one W(2), one Cu(2), and one Cu(3) atom. In the second O site, O(2) is bonded in a water-like geometry to one Cu(2) and one Cu(3) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one W(1) and one Cu(4) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one W(1), one W(2), and one Cu(3) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one W(1), one W(2), and one Cu(1) 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 to one O(3), one O(4), one O(5), one O(7), and one O(8) atom to form a mixture of distorted corner and edge-sharing WO5 trigonal bipyramids. The W(1)-O(3) bond length is 1.80 Å. The W(1)-O(4) bond length is 1.93 Å. The W(1)-O(5) bond length is 1.99 Å. The W(1)-O(7) bond length is 2.12 Å. The W(1)-O(8) bond length is 1.80 Å. In the second W site, W(2) is bonded to one O(1), one O(4), one O(5), one O(6), and one O(7) atom to form a mixture of distorted corner and edge-sharing WO5 trigonal bipyramids. The W(2)-O(1) bond length is 1.85 Å. The W(2)-O(4) bond length is 2.03 Å. The W(2)-O(5) bond length is 1.95 Å. The W(2)-O(6) bond length is 1.84 Å. The W(2)-O(7) bond length is 1.92 Å. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted L-shaped geometry to one O(5) and one O(8) atom. The Cu(1)-O(5) bond length is 2.37 Å. The Cu(1)-O(8) bond length is 1.92 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 1.89 Å. The Cu(2)-O(2) bond length is 1.78 Å. In the third Cu site, Cu(3) is bonded in a 3-coordinate geometry to one O(1), one O(2), and one O(4) atom. The Cu(3)-O(1) bond length is 2.02 Å. The Cu(3)-O(2) bond length is 1.80 Å. The Cu(3)-O(4) bond length is 2.42 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 (1.94 Å) and one longer (2.21 Å) Cu(4)-O(6) bond length. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one W(2), one Cu(2), and one Cu(3) atom. In the second O site, O(2) is bonded in a water-like geometry to one Cu(2) and one Cu(3) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one W(1) and one Cu(4) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one W(1), one W(2), and one Cu(3) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one W(1), one W(2), and one Cu(1) 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.