MnCo3O8 is trigonal omega-derived structured and crystallizes in the cubic P4_332 space group. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share edges with six equivalent Co(1)O6 octahedra. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CoO6 octahedra that share edges with two equivalent Mn(1)O6 octahedra and edges with four equivalent Co(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Mn(1) and two equivalent Co(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to three equivalent Co(1) atoms.
MnCo3O8 is trigonal omega-derived structured and crystallizes in the cubic P4_332 space group. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share edges with six equivalent Co(1)O6 octahedra. All Mn(1)-O(1) bond lengths are 1.95 Å. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CoO6 octahedra that share edges with two equivalent Mn(1)O6 octahedra and edges with four equivalent Co(1)O6 octahedra. Both Co(1)-O(2) bond lengths are 1.89 Å. There are two shorter (1.88 Å) and two longer (1.89 Å) Co(1)-O(1) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to one Mn(1) and two equivalent Co(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to three equivalent Co(1) atoms.