TmCu3Te3 crystallizes in the orthorhombic Pmn2_1 space group. Tm(1) is bonded to one Cu(2), one Cu(4), two equivalent Cu(1), two equivalent Cu(3), one Te(3), one Te(4), two equivalent Te(1), and two equivalent Te(2) atoms to form a mixture of distorted face and edge-sharing TmCu6Te6 cuboctahedra. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 7-coordinate geometry to two equivalent Tm(1), one Cu(3), one Te(2), one Te(3), and two equivalent Te(1) atoms. In the second Cu site, Cu(2) is bonded in a 7-coordinate geometry to two equivalent Tm(1), one Cu(4), one Te(3), one Te(4), and two equivalent Te(2) atoms. In the third Cu site, Cu(3) is bonded in a 7-coordinate geometry to two equivalent Tm(1), one Cu(1), one Te(1), one Te(4), and two equivalent Te(2) atoms. In the fourth Cu site, Cu(4) is bonded in a 7-coordinate geometry to two equivalent Tm(1), one Cu(2), one Te(3), one Te(4), and two equivalent Te(1) atoms. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted hexagonal planar geometry to two equivalent Tm(1), one Cu(3), one Cu(4), and two equivalent Cu(1) atoms. In the second Te site, Te(2) is bonded in a distorted hexagonal planar geometry to two equivalent Tm(1), one Cu(1), one Cu(2), and two equivalent Cu(3) atoms. In the third Te site, Te(3) is bonded in a distorted hexagonal planar geometry to two equivalent Tm(1), one Cu(2), one Cu(4), and two equivalent Cu(1) atoms. In the fourth Te site, Te(4) is bonded in a distorted hexagonal planar geometry to two equivalent Tm(1), one Cu(2), one Cu(4), and two equivalent Cu(3) atoms.
TmCu3Te3 crystallizes in the orthorhombic Pmn2_1 space group. Tm(1) is bonded to one Cu(2), one Cu(4), two equivalent Cu(1), two equivalent Cu(3), one Te(3), one Te(4), two equivalent Te(1), and two equivalent Te(2) atoms to form a mixture of distorted face and edge-sharing TmCu6Te6 cuboctahedra. The Tm(1)-Cu(2) bond length is 3.46 Å. The Tm(1)-Cu(4) bond length is 3.45 Å. There is one shorter (2.91 Å) and one longer (3.50 Å) Tm(1)-Cu(1) bond length. There is one shorter (2.91 Å) and one longer (3.48 Å) Tm(1)-Cu(3) bond length. The Tm(1)-Te(3) bond length is 3.06 Å. The Tm(1)-Te(4) bond length is 3.06 Å. There is one shorter (3.01 Å) and one longer (3.08 Å) Tm(1)-Te(1) bond length. There is one shorter (3.00 Å) and one longer (3.08 Å) Tm(1)-Te(2) bond length. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 7-coordinate geometry to two equivalent Tm(1), one Cu(3), one Te(2), one Te(3), and two equivalent Te(1) atoms. The Cu(1)-Cu(3) bond length is 2.59 Å. The Cu(1)-Te(2) bond length is 2.58 Å. The Cu(1)-Te(3) bond length is 2.70 Å. There is one shorter (2.62 Å) and one longer (2.69 Å) Cu(1)-Te(1) bond length. In the second Cu site, Cu(2) is bonded in a 7-coordinate geometry to two equivalent Tm(1), one Cu(4), one Te(3), one Te(4), and two equivalent Te(2) atoms. The Cu(2)-Cu(4) bond length is 2.59 Å. The Cu(2)-Te(3) bond length is 2.62 Å. The Cu(2)-Te(4) bond length is 2.65 Å. Both Cu(2)-Te(2) bond lengths are 2.63 Å. In the third Cu site, Cu(3) is bonded in a 7-coordinate geometry to two equivalent Tm(1), one Cu(1), one Te(1), one Te(4), and two equivalent Te(2) atoms. The Cu(3)-Te(1) bond length is 2.58 Å. The Cu(3)-Te(4) bond length is 2.70 Å. There is one shorter (2.62 Å) and one longer (2.70 Å) Cu(3)-Te(2) bond length. In the fourth Cu site, Cu(4) is bonded in a 7-coordinate geometry to two equivalent Tm(1), one Cu(2), one Te(3), one Te(4), and two equivalent Te(1) atoms. The Cu(4)-Te(3) bond length is 2.67 Å. The Cu(4)-Te(4) bond length is 2.62 Å. Both Cu(4)-Te(1) bond lengths are 2.62 Å. There are four inequivalent Te sites. In the first Te site, Te(1) is bonded in a distorted hexagonal planar geometry to two equivalent Tm(1), one Cu(3), one Cu(4), and two equivalent Cu(1) atoms. In the second Te site, Te(2) is bonded in a distorted hexagonal planar geometry to two equivalent Tm(1), one Cu(1), one Cu(2), and two equivalent Cu(3) atoms. In the third Te site, Te(3) is bonded in a distorted hexagonal planar geometry to two equivalent Tm(1), one Cu(2), one Cu(4), and two equivalent Cu(1) atoms. In the fourth Te site, Te(4) is bonded in a distorted hexagonal planar geometry to two equivalent Tm(1), one Cu(2), one Cu(4), and two equivalent Cu(3) atoms.