MnO2 is Hydrophilite structured and crystallizes in the orthorhombic Pnnm space group. Mn(1) is bonded to six equivalent O(1) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. O(1) is bonded in a trigonal planar geometry to three equivalent Mn(1) atoms.
MnO2 is Hydrophilite structured and crystallizes in the orthorhombic Pnnm space group. Mn(1) is bonded to six equivalent O(1) atoms to form a mixture of corner and edge-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are four shorter (1.88 Å) and two longer (1.90 Å) Mn(1)-O(1) bond lengths. O(1) is bonded in a trigonal planar geometry to three equivalent Mn(1) atoms.