K2Co(SO5)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Co(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms to form CoO6 octahedra that share corners with four equivalent S(1)O4 tetrahedra. S(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent K(1), one Co(1), and one S(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one K(1), one Co(1), and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one K(1) and one Co(1) atom.
K2Co(SO5)2 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one O(3), one O(5), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. The K(1)-O(3) bond length is 3.25 Å. The K(1)-O(5) bond length is 2.94 Å. There is one shorter (2.87 Å) and one longer (2.91 Å) K(1)-O(1) bond length. There is one shorter (3.01 Å) and one longer (3.18 Å) K(1)-O(2) bond length. There is one shorter (2.78 Å) and one longer (3.13 Å) K(1)-O(4) bond length. Co(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms to form CoO6 octahedra that share corners with four equivalent S(1)O4 tetrahedra. Both Co(1)-O(2) bond lengths are 2.14 Å. Both Co(1)-O(3) bond lengths are 1.91 Å. Both Co(1)-O(5) bond lengths are 1.75 Å. S(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SO4 tetrahedra that share corners with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-55°. The S(1)-O(1) bond length is 1.46 Å. The S(1)-O(2) bond length is 1.50 Å. The S(1)-O(3) bond length is 1.56 Å. The S(1)-O(4) bond length is 1.47 Å. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to two equivalent K(1), one Co(1), and one S(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one K(1), one Co(1), and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent K(1) and one S(1) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one K(1) and one Co(1) atom.