K2(CuTe)5 crystallizes in the orthorhombic Cmcm space group. K(1) is bonded in a distorted body-centered cubic geometry to two equivalent Te(1), two equivalent Te(2), and four equivalent Te(3) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 4-coordinate geometry to two equivalent Te(1) and two equivalent Te(2) atoms. In the second Cu site, Cu(2) is bonded in a 4-coordinate geometry to one Te(2) and three equivalent Te(3) atoms. In the third Cu site, Cu(3) is bonded to one Te(1), one Te(3), and two equivalent Te(2) atoms to form distorted corner-sharing CuTe4 tetrahedra. There are three inequivalent Te sites. In the first Te site, Te(3) is bonded in a 8-coordinate geometry to four equivalent K(1), one Cu(3), and three equivalent Cu(2) atoms. In the second Te site, Te(1) is bonded in a 8-coordinate geometry to four equivalent K(1), two equivalent Cu(1), and two equivalent Cu(3) atoms. In the third Te site, Te(2) is bonded in a 6-coordinate geometry to two equivalent K(1), one Cu(1), one Cu(2), and two equivalent Cu(3) atoms.
K2(CuTe)5 crystallizes in the orthorhombic Cmcm space group. K(1) is bonded in a distorted body-centered cubic geometry to two equivalent Te(1), two equivalent Te(2), and four equivalent Te(3) atoms. Both K(1)-Te(1) bond lengths are 3.59 Å. Both K(1)-Te(2) bond lengths are 3.65 Å. There are two shorter (3.61 Å) and two longer (3.79 Å) K(1)-Te(3) bond lengths. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 4-coordinate geometry to two equivalent Te(1) and two equivalent Te(2) atoms. Both Cu(1)-Te(1) bond lengths are 2.55 Å. Both Cu(1)-Te(2) bond lengths are 2.58 Å. In the second Cu site, Cu(2) is bonded in a 4-coordinate geometry to one Te(2) and three equivalent Te(3) atoms. The Cu(2)-Te(2) bond length is 2.65 Å. There are two shorter (2.59 Å) and one longer (2.63 Å) Cu(2)-Te(3) bond length. In the third Cu site, Cu(3) is bonded to one Te(1), one Te(3), and two equivalent Te(2) atoms to form distorted corner-sharing CuTe4 tetrahedra. The Cu(3)-Te(1) bond length is 2.71 Å. The Cu(3)-Te(3) bond length is 2.63 Å. Both Cu(3)-Te(2) bond lengths are 2.66 Å. There are three inequivalent Te sites. In the first Te site, Te(3) is bonded in a 8-coordinate geometry to four equivalent K(1), one Cu(3), and three equivalent Cu(2) atoms. In the second Te site, Te(1) is bonded in a 8-coordinate geometry to four equivalent K(1), two equivalent Cu(1), and two equivalent Cu(3) atoms. In the third Te site, Te(2) is bonded in a 6-coordinate geometry to two equivalent K(1), one Cu(1), one Cu(2), and two equivalent Cu(3) atoms.