Cs2Re2S5 crystallizes in the trigonal R-3c space group. Cs(1) is bonded in a 5-coordinate geometry to one S(1), one S(4), two equivalent S(3), and three equivalent S(2) atoms. Re(1) is bonded to one S(1), one S(3), and three equivalent S(2) atoms to form distorted edge-sharing ReS5 square pyramids. There are four inequivalent S sites. In the first S site, S(4) is bonded to six equivalent Cs(1) atoms to form distorted face-sharing SCs6 pentagonal pyramids. In the second S site, S(1) is bonded to three equivalent Cs(1) and three equivalent Re(1) atoms to form distorted face-sharing SCs3Re3 octahedra. In the third S site, S(2) is bonded in a 6-coordinate geometry to three equivalent Cs(1) and three equivalent Re(1) atoms. In the fourth S site, S(3) is bonded in a 4-coordinate geometry to two equivalent Cs(1), one Re(1), and one S(3) atom.
Cs2Re2S5 crystallizes in the trigonal R-3c space group. Cs(1) is bonded in a 5-coordinate geometry to one S(1), one S(4), two equivalent S(3), and three equivalent S(2) atoms. The Cs(1)-S(1) bond length is 3.48 Å. The Cs(1)-S(4) bond length is 3.57 Å. There is one shorter (3.54 Å) and one longer (3.61 Å) Cs(1)-S(3) bond length. There are a spread of Cs(1)-S(2) bond distances ranging from 3.73-4.02 Å. Re(1) is bonded to one S(1), one S(3), and three equivalent S(2) atoms to form distorted edge-sharing ReS5 square pyramids. The Re(1)-S(1) bond length is 2.43 Å. The Re(1)-S(3) bond length is 2.48 Å. There is one shorter (2.43 Å) and two longer (2.44 Å) Re(1)-S(2) bond lengths. There are four inequivalent S sites. In the first S site, S(4) is bonded to six equivalent Cs(1) atoms to form distorted face-sharing SCs6 pentagonal pyramids. In the second S site, S(1) is bonded to three equivalent Cs(1) and three equivalent Re(1) atoms to form distorted face-sharing SCs3Re3 octahedra. In the third S site, S(2) is bonded in a 6-coordinate geometry to three equivalent Cs(1) and three equivalent Re(1) atoms. In the fourth S site, S(3) is bonded in a 4-coordinate geometry to two equivalent Cs(1), one Re(1), and one S(3) atom. The S(3)-S(3) bond length is 2.11 Å.