KCo(CO)4 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. Co(1) is bonded in a tetrahedral geometry to one C(1), one C(2), one C(3), and one C(4) atom. There are four inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one Co(1) and one O(3) atom. In the second C site, C(2) is bonded in a linear geometry to one Co(1) and one O(2) atom. In the third C site, C(3) is bonded in a linear geometry to one Co(1) and one O(4) atom. In the fourth C site, C(4) is bonded in a linear geometry to one Co(1) and one O(1) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1) and one C(4) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one K(1) and one C(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one K(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(1) and one C(3) atom.
KCo(CO)4 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. The K(1)-O(1) bond length is 2.93 Å. The K(1)-O(2) bond length is 2.85 Å. The K(1)-O(3) bond length is 2.83 Å. The K(1)-O(4) bond length is 2.88 Å. Co(1) is bonded in a tetrahedral geometry to one C(1), one C(2), one C(3), and one C(4) atom. The Co(1)-C(1) bond length is 1.74 Å. The Co(1)-C(2) bond length is 1.75 Å. The Co(1)-C(3) bond length is 1.75 Å. The Co(1)-C(4) bond length is 1.74 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one Co(1) and one O(3) atom. The C(1)-O(3) bond length is 1.18 Å. In the second C site, C(2) is bonded in a linear geometry to one Co(1) and one O(2) atom. The C(2)-O(2) bond length is 1.17 Å. In the third C site, C(3) is bonded in a linear geometry to one Co(1) and one O(4) atom. The C(3)-O(4) bond length is 1.17 Å. In the fourth C site, C(4) is bonded in a linear geometry to one Co(1) and one O(1) atom. The C(4)-O(1) bond length is 1.18 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1) and one C(4) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one K(1) and one C(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one K(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one K(1) and one C(3) atom.