CuTeO4 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(3), one O(5), one O(6), and one O(7) atom to form distorted CuO5 trigonal bipyramids that share corners with two equivalent Te(1)O4 tetrahedra and corners with three equivalent Te(2)O4 tetrahedra. In the second Cu site, Cu(2) is bonded in a 5-coordinate geometry to one O(4), one O(6), one O(8), and two equivalent O(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form TeO4 tetrahedra that share corners with two equivalent Cu(1)O5 trigonal bipyramids. In the second Te site, Te(2) is bonded to one O(3), one O(5), one O(6), and one O(8) atom to form TeO4 tetrahedra that share corners with three equivalent Cu(1)O5 trigonal bipyramids. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one Te(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Cu(2) and one Te(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Cu(1) and one Te(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Cu(2) and one Te(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Cu(1) and one Te(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Cu(1), one Cu(2), and one Te(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Cu(1) and one Te(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Cu(2) and one Te(2) atom.
CuTeO4 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(3), one O(5), one O(6), and one O(7) atom to form distorted CuO5 trigonal bipyramids that share corners with two equivalent Te(1)O4 tetrahedra and corners with three equivalent Te(2)O4 tetrahedra. The Cu(1)-O(1) bond length is 1.92 Å. The Cu(1)-O(3) bond length is 1.95 Å. The Cu(1)-O(5) bond length is 1.94 Å. The Cu(1)-O(6) bond length is 2.52 Å. The Cu(1)-O(7) bond length is 1.95 Å. In the second Cu site, Cu(2) is bonded in a 5-coordinate geometry to one O(4), one O(6), one O(8), and two equivalent O(2) atoms. The Cu(2)-O(4) bond length is 1.94 Å. The Cu(2)-O(6) bond length is 2.00 Å. The Cu(2)-O(8) bond length is 1.93 Å. There is one shorter (1.93 Å) and one longer (2.55 Å) Cu(2)-O(2) bond length. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form TeO4 tetrahedra that share corners with two equivalent Cu(1)O5 trigonal bipyramids. The Te(1)-O(1) bond length is 1.87 Å. The Te(1)-O(2) bond length is 1.88 Å. The Te(1)-O(4) bond length is 1.87 Å. The Te(1)-O(7) bond length is 1.85 Å. In the second Te site, Te(2) is bonded to one O(3), one O(5), one O(6), and one O(8) atom to form TeO4 tetrahedra that share corners with three equivalent Cu(1)O5 trigonal bipyramids. The Te(2)-O(3) bond length is 1.86 Å. The Te(2)-O(5) bond length is 1.88 Å. The Te(2)-O(6) bond length is 1.90 Å. The Te(2)-O(8) bond length is 1.84 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one Te(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Cu(2) and one Te(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Cu(1) and one Te(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Cu(2) and one Te(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Cu(1) and one Te(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Cu(1), one Cu(2), and one Te(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Cu(1) and one Te(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Cu(2) and one Te(2) atom.