MgCoHO2 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent H(1) and two equivalent O(1) atoms. Co(1) is bonded to six equivalent O(1) atoms to form distorted edge-sharing CoO6 octahedra. H(1) is bonded in a distorted linear geometry to two equivalent Mg(1) and two equivalent O(1) atoms. O(1) is bonded in a distorted single-bond geometry to one Mg(1), three equivalent Co(1), and one H(1) atom.
MgCoHO2 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a 4-coordinate geometry to two equivalent H(1) and two equivalent O(1) atoms. Both Mg(1)-H(1) bond lengths are 1.90 Å. Both Mg(1)-O(1) bond lengths are 2.03 Å. Co(1) is bonded to six equivalent O(1) atoms to form distorted edge-sharing CoO6 octahedra. There are two shorter (2.12 Å) and four longer (2.56 Å) Co(1)-O(1) bond lengths. H(1) is bonded in a distorted linear geometry to two equivalent Mg(1) and two equivalent O(1) atoms. Both H(1)-O(1) bond lengths are 1.21 Å. O(1) is bonded in a distorted single-bond geometry to one Mg(1), three equivalent Co(1), and one H(1) atom.