Cu2Te2O5Br2 crystallizes in the tetragonal P-4 space group. Cu(1) is bonded in a 5-coordinate geometry to one O(2), three equivalent O(1), and one Br(1) atom. Te(1) is bonded in a 3-coordinate geometry to one O(1), one O(3), and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Cu(1) and one Te(1) atom to form distorted edge-sharing OCu3Te tetrahedra. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and two equivalent Te(1) atoms. In the third O site, O(3) is bonded in a bent 120 degrees geometry to two equivalent Te(1) atoms. Br(1) is bonded in a distorted single-bond geometry to one Cu(1) atom.
Cu2Te2O5Br2 crystallizes in the tetragonal P-4 space group. Cu(1) is bonded in a 5-coordinate geometry to one O(2), three equivalent O(1), and one Br(1) atom. The Cu(1)-O(2) bond length is 1.95 Å. There are a spread of Cu(1)-O(1) bond distances ranging from 1.96-2.58 Å. The Cu(1)-Br(1) bond length is 2.40 Å. Te(1) is bonded in a 3-coordinate geometry to one O(1), one O(3), and two equivalent O(2) atoms. The Te(1)-O(1) bond length is 1.95 Å. The Te(1)-O(3) bond length is 1.97 Å. There is one shorter (1.91 Å) and one longer (2.51 Å) Te(1)-O(2) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Cu(1) and one Te(1) atom to form distorted edge-sharing OCu3Te tetrahedra. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and two equivalent Te(1) atoms. In the third O site, O(3) is bonded in a bent 120 degrees geometry to two equivalent Te(1) atoms. Br(1) is bonded in a distorted single-bond geometry to one Cu(1) atom.