TbMnO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Tb(1) is bonded in a 8-coordinate geometry to two equivalent O(1) and six equivalent O(2) atoms. Mn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 34-35°. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Tb(1) and two equivalent Mn(1) atoms to form distorted corner-sharing OTb2Mn2 trigonal pyramids. In the second O site, O(2) is bonded in a 5-coordinate geometry to three equivalent Tb(1) and two equivalent Mn(1) atoms.
TbMnO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Tb(1) is bonded in a 8-coordinate geometry to two equivalent O(1) and six equivalent O(2) atoms. There is one shorter (2.25 Å) and one longer (2.32 Å) Tb(1)-O(1) bond length. There are a spread of Tb(1)-O(2) bond distances ranging from 2.30-2.66 Å. Mn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 34-35°. Both Mn(1)-O(1) bond lengths are 1.98 Å. There are two shorter (1.95 Å) and two longer (2.08 Å) Mn(1)-O(2) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Tb(1) and two equivalent Mn(1) atoms to form distorted corner-sharing OTb2Mn2 trigonal pyramids. In the second O site, O(2) is bonded in a 5-coordinate geometry to three equivalent Tb(1) and two equivalent Mn(1) atoms.