K2(ReS2)3 crystallizes in the monoclinic C2/c space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to two equivalent S(3), two equivalent S(4), and two equivalent S(6) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to two equivalent S(1), two equivalent S(4), two equivalent S(5), and two equivalent S(6) atoms. In the third K site, K(3) is bonded in a 7-coordinate geometry to one S(3), one S(4), one S(6), two equivalent S(2), and two equivalent S(5) atoms. There are three inequivalent Re sites. In the first Re site, Re(1) is bonded to one S(1), one S(2), one S(3), one S(4), and one S(5) atom to form edge-sharing ReS5 square pyramids. In the second Re site, Re(2) is bonded to one S(1), one S(2), one S(3), one S(4), and one S(6) atom to form a mixture of edge and corner-sharing ReS5 square pyramids. In the third Re site, Re(3) is bonded to one S(1), one S(2), one S(3), one S(4), and one S(6) atom to form a mixture of edge and corner-sharing ReS5 square pyramids. There are six inequivalent S sites. In the first S site, S(1) is bonded in a 4-coordinate geometry to one K(2), one Re(1), one Re(2), and one Re(3) atom. In the second S site, S(2) is bonded to two equivalent K(3), one Re(1), one Re(2), and one Re(3) atom to form distorted edge-sharing SK2Re3 trigonal bipyramids. In the third S site, S(3) is bonded in a 5-coordinate geometry to one K(1), one K(3), one Re(1), one Re(2), and one Re(3) atom. In the fourth S site, S(4) is bonded in a 6-coordinate geometry to one K(1), one K(2), one K(3), one Re(1), one Re(2), and one Re(3) atom. In the fifth S site, S(5) is bonded in a 5-coordinate geometry to one K(2), two equivalent K(3), one Re(1), and one S(5) atom. In the sixth S site, S(6) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one Re(2), and one Re(3) atom.
K2(ReS2)3 crystallizes in the monoclinic C2/c space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to two equivalent S(3), two equivalent S(4), and two equivalent S(6) atoms. Both K(1)-S(3) bond lengths are 3.22 Å. Both K(1)-S(4) bond lengths are 3.49 Å. Both K(1)-S(6) bond lengths are 3.13 Å. In the second K site, K(2) is bonded in a 8-coordinate geometry to two equivalent S(1), two equivalent S(4), two equivalent S(5), and two equivalent S(6) atoms. Both K(2)-S(1) bond lengths are 3.13 Å. Both K(2)-S(4) bond lengths are 3.43 Å. Both K(2)-S(5) bond lengths are 3.19 Å. Both K(2)-S(6) bond lengths are 3.21 Å. In the third K site, K(3) is bonded in a 7-coordinate geometry to one S(3), one S(4), one S(6), two equivalent S(2), and two equivalent S(5) atoms. The K(3)-S(3) bond length is 3.20 Å. The K(3)-S(4) bond length is 3.55 Å. The K(3)-S(6) bond length is 3.14 Å. There is one shorter (3.07 Å) and one longer (3.22 Å) K(3)-S(2) bond length. There is one shorter (3.20 Å) and one longer (3.25 Å) K(3)-S(5) bond length. There are three inequivalent Re sites. In the first Re site, Re(1) is bonded to one S(1), one S(2), one S(3), one S(4), and one S(5) atom to form edge-sharing ReS5 square pyramids. The Re(1)-S(1) bond length is 2.40 Å. The Re(1)-S(2) bond length is 2.43 Å. The Re(1)-S(3) bond length is 2.41 Å. The Re(1)-S(4) bond length is 2.44 Å. The Re(1)-S(5) bond length is 2.48 Å. In the second Re site, Re(2) is bonded to one S(1), one S(2), one S(3), one S(4), and one S(6) atom to form a mixture of edge and corner-sharing ReS5 square pyramids. The Re(2)-S(1) bond length is 2.42 Å. The Re(2)-S(2) bond length is 2.40 Å. The Re(2)-S(3) bond length is 2.40 Å. The Re(2)-S(4) bond length is 2.44 Å. The Re(2)-S(6) bond length is 2.49 Å. In the third Re site, Re(3) is bonded to one S(1), one S(2), one S(3), one S(4), and one S(6) atom to form a mixture of edge and corner-sharing ReS5 square pyramids. The Re(3)-S(1) bond length is 2.39 Å. The Re(3)-S(2) bond length is 2.42 Å. The Re(3)-S(3) bond length is 2.42 Å. The Re(3)-S(4) bond length is 2.45 Å. The Re(3)-S(6) bond length is 2.49 Å. There are six inequivalent S sites. In the first S site, S(1) is bonded in a 4-coordinate geometry to one K(2), one Re(1), one Re(2), and one Re(3) atom. In the second S site, S(2) is bonded to two equivalent K(3), one Re(1), one Re(2), and one Re(3) atom to form distorted edge-sharing SK2Re3 trigonal bipyramids. In the third S site, S(3) is bonded in a 5-coordinate geometry to one K(1), one K(3), one Re(1), one Re(2), and one Re(3) atom. In the fourth S site, S(4) is bonded in a 6-coordinate geometry to one K(1), one K(2), one K(3), one Re(1), one Re(2), and one Re(3) atom. In the fifth S site, S(5) is bonded in a 5-coordinate geometry to one K(2), two equivalent K(3), one Re(1), and one S(5) atom. The S(5)-S(5) bond length is 2.12 Å. In the sixth S site, S(6) is bonded in a 5-coordinate geometry to one K(1), one K(2), one K(3), one Re(2), and one Re(3) atom.