Cs5Te3 crystallizes in the tetragonal I4/m space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 6-coordinate geometry to two equivalent Te(1) and four equivalent Te(2) atoms. In the second Cs site, Cs(2) is bonded in a 6-coordinate geometry to two equivalent Te(1) and four equivalent Te(2) atoms. In the third Cs site, Cs(3) is bonded in a 4-coordinate geometry to four equivalent Te(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 9-coordinate geometry to four equivalent Cs(1), four equivalent Cs(2), and one Te(1) atom. In the second Te site, Te(2) is bonded in a 10-coordinate geometry to two equivalent Cs(3), four equivalent Cs(1), and four equivalent Cs(2) atoms.
Cs5Te3 crystallizes in the tetragonal I4/m space group. There are three inequivalent Cs sites. In the first Cs site, Cs(1) is bonded in a 6-coordinate geometry to two equivalent Te(1) and four equivalent Te(2) atoms. Both Cs(1)-Te(1) bond lengths are 3.92 Å. There are a spread of Cs(1)-Te(2) bond distances ranging from 3.95-4.14 Å. In the second Cs site, Cs(2) is bonded in a 6-coordinate geometry to two equivalent Te(1) and four equivalent Te(2) atoms. Both Cs(2)-Te(1) bond lengths are 4.12 Å. There are a spread of Cs(2)-Te(2) bond distances ranging from 3.95-4.14 Å. In the third Cs site, Cs(3) is bonded in a 4-coordinate geometry to four equivalent Te(2) atoms. All Cs(3)-Te(2) bond lengths are 3.76 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 9-coordinate geometry to four equivalent Cs(1), four equivalent Cs(2), and one Te(1) atom. The Te(1)-Te(1) bond length is 2.81 Å. In the second Te site, Te(2) is bonded in a 10-coordinate geometry to two equivalent Cs(3), four equivalent Cs(1), and four equivalent Cs(2) atoms.