KS2O3 crystallizes in the monoclinic Cc space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(9) atom. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(11), one O(2), one O(3), one O(4), one O(7), one O(9), and two equivalent O(8) atoms. In the third K site, K(3) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(2), one O(3), one O(5), and one O(6) atom. In the fourth K site, K(4) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(12), one O(7), one O(8), one O(9), and two equivalent O(11) atoms. There are eight inequivalent S sites. In the first S site, S(1) is bonded in a trigonal non-coplanar geometry to one S(2), one O(1), one O(2), and one O(3) atom. In the second S site, S(2) is bonded in a distorted water-like geometry to one S(1) and one S(3) atom. In the third S site, S(3) is bonded in a distorted water-like geometry to one S(2) and one S(4) atom. In the fourth S site, S(4) is bonded in a trigonal non-coplanar geometry to one S(3), one O(4), one O(5), and one O(6) atom. In the fifth S site, S(5) is bonded in a trigonal non-coplanar geometry to one S(6), one O(7), one O(8), and one O(9) atom. In the sixth S site, S(6) is bonded in a water-like geometry to one S(5) and one S(7) atom. In the seventh S site, S(7) is bonded in a water-like geometry to one S(6) and one S(8) atom. In the eighth S site, S(8) is bonded in a trigonal non-coplanar geometry to one S(7), one O(10), one O(11), and one O(12) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(4), and one S(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(2), one K(3), and one S(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one S(4) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one K(3) and one S(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one K(1), one K(3), and one S(4) atom. In the seventh O site, O(7) is bonded in a 1-coordinate geometry to one K(1), one K(2), one K(4), and one S(5) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(4), two equivalent K(2), and one S(5) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(4), and one S(5) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one S(8) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(4), and one S(8) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one S(8) atom.
KS2O3 crystallizes in the monoclinic Cc space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(9) atom. The K(1)-O(1) bond length is 2.85 Å. The K(1)-O(3) bond length is 2.91 Å. The K(1)-O(4) bond length is 2.82 Å. The K(1)-O(6) bond length is 2.74 Å. The K(1)-O(7) bond length is 3.20 Å. The K(1)-O(9) bond length is 2.82 Å. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(11), one O(2), one O(3), one O(4), one O(7), one O(9), and two equivalent O(8) atoms. The K(2)-O(11) bond length is 3.13 Å. The K(2)-O(2) bond length is 2.91 Å. The K(2)-O(3) bond length is 2.95 Å. The K(2)-O(4) bond length is 2.77 Å. The K(2)-O(7) bond length is 2.92 Å. The K(2)-O(9) bond length is 2.91 Å. Both K(2)-O(8) bond lengths are 3.01 Å. In the third K site, K(3) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(2), one O(3), one O(5), and one O(6) atom. The K(3)-O(10) bond length is 2.94 Å. The K(3)-O(12) bond length is 2.88 Å. The K(3)-O(2) bond length is 3.05 Å. The K(3)-O(3) bond length is 3.05 Å. The K(3)-O(5) bond length is 2.70 Å. The K(3)-O(6) bond length is 2.76 Å. In the fourth K site, K(4) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(12), one O(7), one O(8), one O(9), and two equivalent O(11) atoms. The K(4)-O(1) bond length is 2.83 Å. The K(4)-O(10) bond length is 2.88 Å. The K(4)-O(12) bond length is 2.84 Å. The K(4)-O(7) bond length is 2.75 Å. The K(4)-O(8) bond length is 3.07 Å. The K(4)-O(9) bond length is 3.30 Å. There is one shorter (2.90 Å) and one longer (3.24 Å) K(4)-O(11) bond length. There are eight inequivalent S sites. In the first S site, S(1) is bonded in a trigonal non-coplanar geometry to one S(2), one O(1), one O(2), and one O(3) atom. The S(1)-S(2) bond length is 2.17 Å. The S(1)-O(1) bond length is 1.48 Å. The S(1)-O(2) bond length is 1.47 Å. The S(1)-O(3) bond length is 1.47 Å. In the second S site, S(2) is bonded in a distorted water-like geometry to one S(1) and one S(3) atom. The S(2)-S(3) bond length is 2.01 Å. In the third S site, S(3) is bonded in a distorted water-like geometry to one S(2) and one S(4) atom. The S(3)-S(4) bond length is 2.18 Å. In the fourth S site, S(4) is bonded in a trigonal non-coplanar geometry to one S(3), one O(4), one O(5), and one O(6) atom. The S(4)-O(4) bond length is 1.47 Å. The S(4)-O(5) bond length is 1.46 Å. The S(4)-O(6) bond length is 1.47 Å. In the fifth S site, S(5) is bonded in a trigonal non-coplanar geometry to one S(6), one O(7), one O(8), and one O(9) atom. The S(5)-S(6) bond length is 2.16 Å. The S(5)-O(7) bond length is 1.48 Å. The S(5)-O(8) bond length is 1.47 Å. The S(5)-O(9) bond length is 1.47 Å. In the sixth S site, S(6) is bonded in a water-like geometry to one S(5) and one S(7) atom. The S(6)-S(7) bond length is 2.01 Å. In the seventh S site, S(7) is bonded in a water-like geometry to one S(6) and one S(8) atom. The S(7)-S(8) bond length is 2.19 Å. In the eighth S site, S(8) is bonded in a trigonal non-coplanar geometry to one S(7), one O(10), one O(11), and one O(12) atom. The S(8)-O(10) bond length is 1.47 Å. The S(8)-O(11) bond length is 1.48 Å. The S(8)-O(12) bond length is 1.47 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(4), and one S(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(2), one K(3), and one S(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(3), and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one S(4) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one K(3) and one S(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one K(1), one K(3), and one S(4) atom. In the seventh O site, O(7) is bonded in a 1-coordinate geometry to one K(1), one K(2), one K(4), and one S(5) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(4), two equivalent K(2), and one S(5) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one K(2), one K(4), and one S(5) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one S(8) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(4), and one S(8) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one K(3), one K(4), and one S(8) atom.