KCO2 crystallizes in the orthorhombic Pbam space group. K(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to four equivalent K(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to four equivalent K(1) and one C(1) atom.
KCO2 crystallizes in the orthorhombic Pbam space group. K(1) is bonded in a distorted body-centered cubic geometry to four equivalent O(1) and four equivalent O(2) atoms. There are two shorter (2.79 Å) and two longer (2.83 Å) K(1)-O(1) bond lengths. There are two shorter (2.82 Å) and two longer (2.87 Å) K(1)-O(2) bond lengths. C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.26 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to four equivalent K(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to four equivalent K(1) and one C(1) atom.