K3GeS3 crystallizes in the monoclinic C2/m 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(2) and four equivalent S(1) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. In the third K site, K(3) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. Ge(1) is bonded in a distorted trigonal non-coplanar geometry to one S(2) and two equivalent S(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 7-coordinate geometry to two equivalent K(1), two equivalent K(2), two equivalent K(3), and one Ge(1) atom. In the second S site, S(2) is bonded to two equivalent K(1), two equivalent K(2), two equivalent K(3), and one Ge(1) atom to form a mixture of distorted edge and corner-sharing SK6Ge pentagonal bipyramids.
K3GeS3 crystallizes in the monoclinic C2/m 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(2) and four equivalent S(1) atoms. There is one shorter (3.24 Å) and one longer (3.37 Å) K(1)-S(2) bond length. There are two shorter (3.32 Å) and two longer (3.38 Å) K(1)-S(1) bond lengths. In the second K site, K(2) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. Both K(2)-S(2) bond lengths are 3.31 Å. There are two shorter (3.20 Å) and two longer (3.52 Å) K(2)-S(1) bond lengths. In the third K site, K(3) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. Both K(3)-S(2) bond lengths are 3.36 Å. There are two shorter (3.15 Å) and two longer (3.16 Å) K(3)-S(1) bond lengths. Ge(1) is bonded in a distorted trigonal non-coplanar geometry to one S(2) and two equivalent S(1) atoms. The Ge(1)-S(2) bond length is 2.23 Å. Both Ge(1)-S(1) bond lengths are 2.23 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 7-coordinate geometry to two equivalent K(1), two equivalent K(2), two equivalent K(3), and one Ge(1) atom. In the second S site, S(2) is bonded to two equivalent K(1), two equivalent K(2), two equivalent K(3), and one Ge(1) atom to form a mixture of distorted edge and corner-sharing SK6Ge pentagonal bipyramids.