KMnO2 crystallizes in the tetragonal I4_1/amd space group. K(1) is bonded to six equivalent O(1) atoms to form KO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent K(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-16°. Mn(1) is bonded to six equivalent O(1) atoms to form distorted MnO6 octahedra that share corners with six equivalent K(1)O6 octahedra, edges with six equivalent K(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-16°. O(1) is bonded to three equivalent K(1) and three equivalent Mn(1) atoms to form a mixture of distorted edge and corner-sharing OK3Mn3 octahedra. The corner-sharing octahedra are not tilted.
KMnO2 crystallizes in the tetragonal I4_1/amd space group. K(1) is bonded to six equivalent O(1) atoms to form KO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with six equivalent K(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-16°. There are four shorter (2.55 Å) and two longer (2.76 Å) K(1)-O(1) bond lengths. Mn(1) is bonded to six equivalent O(1) atoms to form distorted MnO6 octahedra that share corners with six equivalent K(1)O6 octahedra, edges with six equivalent K(1)O6 octahedra, and edges with six equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-16°. There are four shorter (2.02 Å) and two longer (2.66 Å) Mn(1)-O(1) bond lengths. O(1) is bonded to three equivalent K(1) and three equivalent Mn(1) atoms to form a mixture of distorted edge and corner-sharing OK3Mn3 octahedra. The corner-sharing octahedra are not tilted.