Ca2CuTe4(O5Cl)2 crystallizes in the triclinic P-1 space group. Ca(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), two equivalent O(3), and two equivalent O(5) atoms. Cu(1) is bonded in a distorted square co-planar geometry to two equivalent O(2), two equivalent O(4), and two equivalent Cl(1) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and two equivalent O(2) atoms. In the second Te site, Te(2) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(5), and two equivalent O(1) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1) and two equivalent Te(2) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ca(1), one Cu(1), and two equivalent Te(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Ca(1) and one Te(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1), one Cu(1), and one Te(1) atom. In the fifth O site, O(5) is bonded to two equivalent Ca(1), one Te(1), and one Te(2) atom to form distorted edge-sharing OCa2Te2 tetrahedra. Cl(1) is bonded in a single-bond geometry to one Cu(1) atom.
Ca2CuTe4(O5Cl)2 crystallizes in the triclinic P-1 space group. Ca(1) is bonded in a 7-coordinate geometry to one O(1), one O(2), one O(4), two equivalent O(3), and two equivalent O(5) atoms. The Ca(1)-O(1) bond length is 2.37 Å. The Ca(1)-O(2) bond length is 2.64 Å. The Ca(1)-O(4) bond length is 2.35 Å. There is one shorter (2.28 Å) and one longer (2.46 Å) Ca(1)-O(3) bond length. There is one shorter (2.56 Å) and one longer (2.64 Å) Ca(1)-O(5) bond length. Cu(1) is bonded in a distorted square co-planar geometry to two equivalent O(2), two equivalent O(4), and two equivalent Cl(1) atoms. Both Cu(1)-O(2) bond lengths are 2.02 Å. Both Cu(1)-O(4) bond lengths are 1.95 Å. Both Cu(1)-Cl(1) bond lengths are 2.84 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and two equivalent O(2) atoms. The Te(1)-O(4) bond length is 1.89 Å. The Te(1)-O(5) bond length is 1.97 Å. There is one shorter (1.95 Å) and one longer (2.58 Å) Te(1)-O(2) bond length. In the second Te site, Te(2) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(5), and two equivalent O(1) atoms. The Te(2)-O(3) bond length is 1.86 Å. The Te(2)-O(5) bond length is 2.22 Å. There is one shorter (1.97 Å) and one longer (2.10 Å) Te(2)-O(1) bond length. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1) and two equivalent Te(2) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Ca(1), one Cu(1), and two equivalent Te(1) atoms. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Ca(1) and one Te(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Ca(1), one Cu(1), and one Te(1) atom. In the fifth O site, O(5) is bonded to two equivalent Ca(1), one Te(1), and one Te(2) atom to form distorted edge-sharing OCa2Te2 tetrahedra. Cl(1) is bonded in a single-bond geometry to one Cu(1) atom.