KCF3SO3 crystallizes in the monoclinic P2_1 space group. The structure consists of six trifluoromethane molecules inside a KSO3 framework. In the KSO3 framework, there are three inequivalent K sites. In the first K site, K(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(3), one O(4), one O(5), and one O(7) atom. In the second K site, K(2) is bonded in a 5-coordinate geometry to one O(2), one O(4), one O(6), one O(7), and one O(8) atom. In the third K site, K(3) is bonded in a 10-coordinate geometry to one O(1), one O(4), one O(5), one O(7), two equivalent O(2), two equivalent O(8), and two equivalent O(9) atoms. There are three inequivalent S sites. In the first S site, S(1) is bonded in a distorted trigonal non-coplanar geometry to one O(4), one O(6), and one O(7) atom. In the second S site, S(2) is bonded in a distorted trigonal non-coplanar geometry to one O(2), one O(8), and one O(9) atom. In the third S site, S(3) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(3), and one O(5) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(3), and one S(3) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(3), and one S(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one K(1) and one S(3) atom. In the fourth O site, O(4) 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 fifth O site, O(5) is bonded in a 1-coordinate geometry to one K(1), one K(3), and one S(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(2) and one S(1) atom. In the seventh O site, O(7) 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 eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(3), and one S(2) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to two equivalent K(3) and one S(2) atom.
KCF3SO3 crystallizes in the monoclinic P2_1 space group. The structure consists of six trifluoromethane molecules inside a KSO3 framework. In the KSO3 framework, there are three inequivalent K sites. In the first K site, K(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(3), one O(4), one O(5), and one O(7) atom. The K(1)-O(1) bond length is 2.66 Å. The K(1)-O(3) bond length is 2.66 Å. The K(1)-O(4) bond length is 2.99 Å. The K(1)-O(5) bond length is 2.65 Å. The K(1)-O(7) bond length is 3.03 Å. In the second K site, K(2) is bonded in a 5-coordinate geometry to one O(2), one O(4), one O(6), one O(7), and one O(8) atom. The K(2)-O(2) bond length is 2.75 Å. The K(2)-O(4) bond length is 2.82 Å. The K(2)-O(6) bond length is 2.82 Å. The K(2)-O(7) bond length is 2.82 Å. The K(2)-O(8) bond length is 2.83 Å. In the third K site, K(3) is bonded in a 10-coordinate geometry to one O(1), one O(4), one O(5), one O(7), two equivalent O(2), two equivalent O(8), and two equivalent O(9) atoms. The K(3)-O(1) bond length is 2.79 Å. The K(3)-O(4) bond length is 3.11 Å. The K(3)-O(5) bond length is 3.20 Å. The K(3)-O(7) bond length is 2.96 Å. There is one shorter (3.12 Å) and one longer (3.34 Å) K(3)-O(2) bond length. There is one shorter (3.10 Å) and one longer (3.12 Å) K(3)-O(8) bond length. There is one shorter (3.01 Å) and one longer (3.13 Å) K(3)-O(9) bond length. There are three inequivalent S sites. In the first S site, S(1) is bonded in a distorted trigonal non-coplanar geometry to one O(4), one O(6), and one O(7) atom. The S(1)-O(4) bond length is 1.47 Å. The S(1)-O(6) bond length is 1.46 Å. The S(1)-O(7) bond length is 1.47 Å. In the second S site, S(2) is bonded in a distorted trigonal non-coplanar geometry to one O(2), one O(8), and one O(9) atom. The S(2)-O(2) bond length is 1.47 Å. The S(2)-O(8) bond length is 1.47 Å. The S(2)-O(9) bond length is 1.46 Å. In the third S site, S(3) is bonded in a distorted trigonal non-coplanar geometry to one O(1), one O(3), and one O(5) atom. The S(3)-O(1) bond length is 1.47 Å. The S(3)-O(3) bond length is 1.46 Å. The S(3)-O(5) bond length is 1.46 Å. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(3), and one S(3) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(3), and one S(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one K(1) and one S(3) atom. In the fourth O site, O(4) 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 fifth O site, O(5) is bonded in a 1-coordinate geometry to one K(1), one K(3), and one S(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one K(2) and one S(1) atom. In the seventh O site, O(7) 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 eighth O site, O(8) is bonded in a distorted single-bond geometry to one K(2), two equivalent K(3), and one S(2) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to two equivalent K(3) and one S(2) atom.