TiMn3O8 is trigonal omega-derived structured and crystallizes in the trigonal R-3m space group. Ti(1) is bonded to six equivalent O(2) atoms to form TiO6 octahedra that share edges with six equivalent Mn(1)O6 octahedra. Mn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form MnO6 octahedra that share edges with two equivalent Ti(1)O6 octahedra and edges with four equivalent Mn(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 three equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Ti(1) and two equivalent Mn(1) atoms.
TiMn3O8 is trigonal omega-derived structured and crystallizes in the trigonal R-3m space group. Ti(1) is bonded to six equivalent O(2) atoms to form TiO6 octahedra that share edges with six equivalent Mn(1)O6 octahedra. All Ti(1)-O(2) bond lengths are 1.99 Å. Mn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form MnO6 octahedra that share edges with two equivalent Ti(1)O6 octahedra and edges with four equivalent Mn(1)O6 octahedra. Both Mn(1)-O(1) bond lengths are 1.94 Å. All Mn(1)-O(2) bond lengths are 1.94 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted T-shaped geometry to three equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Ti(1) and two equivalent Mn(1) atoms.