KCo(HCOO)3 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Co(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one H(2) and two equivalent O(1) atoms. In the second C site, C(2) is bonded in a trigonal planar geometry to one H(1), one O(2), and one O(3) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(1) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Co(1), and one C(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Co(1), and one C(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one Co(1), and one C(2) atom.
KCo(HCOO)3 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), and four equivalent O(1) atoms. Both K(1)-O(2) bond lengths are 2.75 Å. Both K(1)-O(3) bond lengths are 2.83 Å. There are two shorter (2.82 Å) and two longer (2.86 Å) K(1)-O(1) bond lengths. Co(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Both Co(1)-O(1) bond lengths are 2.13 Å. Both Co(1)-O(2) bond lengths are 2.14 Å. Both Co(1)-O(3) bond lengths are 2.12 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one H(2) and two equivalent O(1) atoms. The C(1)-H(2) bond length is 1.11 Å. Both C(1)-O(1) bond lengths are 1.27 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one H(1), one O(2), and one O(3) atom. The C(2)-H(1) bond length is 1.11 Å. The C(2)-O(2) bond length is 1.27 Å. The C(2)-O(3) bond length is 1.27 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(1) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one Co(1), and one C(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one Co(1), and one C(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one Co(1), and one C(2) atom.