K2Co(SO7)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one O(2), one O(5), one O(6), one O(7), two equivalent O(1), and two equivalent O(4) atoms. Co(1) is bonded in an octahedral geometry to two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms. S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(4), and one O(5) atom. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to one K(1) and one Co(1) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(1) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one K(1) and one S(1) atom. In the fourth O site, O(3) is bonded in a single-bond geometry to one Co(1) atom. In the fifth O site, O(4) is bonded in a single-bond geometry to two equivalent K(1) and one S(1) atom. In the sixth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one K(1) and one S(1) atom. In the seventh O site, O(6) is bonded in a distorted single-bond geometry to one K(1) and one Co(1) atom.
K2Co(SO7)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one O(2), one O(5), one O(6), one O(7), two equivalent O(1), and two equivalent O(4) atoms. The K(1)-O(2) bond length is 2.79 Å. The K(1)-O(5) bond length is 2.81 Å. The K(1)-O(6) bond length is 2.99 Å. The K(1)-O(7) bond length is 3.13 Å. There is one shorter (2.73 Å) and one longer (2.86 Å) K(1)-O(1) bond length. There is one shorter (3.00 Å) and one longer (3.21 Å) K(1)-O(4) bond length. Co(1) is bonded in an octahedral geometry to two equivalent O(3), two equivalent O(6), and two equivalent O(7) atoms. Both Co(1)-O(3) bond lengths are 1.80 Å. Both Co(1)-O(6) bond lengths are 1.78 Å. Both Co(1)-O(7) bond lengths are 1.78 Å. S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(4), and one O(5) atom. The S(1)-O(1) bond length is 1.49 Å. The S(1)-O(2) bond length is 1.51 Å. The S(1)-O(4) bond length is 1.49 Å. The S(1)-O(5) bond length is 1.48 Å. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a distorted single-bond geometry to one K(1) and one Co(1) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(1) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one K(1) and one S(1) atom. In the fourth O site, O(3) is bonded in a single-bond geometry to one Co(1) atom. In the fifth O site, O(4) is bonded in a single-bond geometry to two equivalent K(1) and one S(1) atom. In the sixth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one K(1) and one S(1) atom. In the seventh O site, O(6) is bonded in a distorted single-bond geometry to one K(1) and one Co(1) atom.