LaMnO3 crystallizes in the orthorhombic Pmc2_1 space group. La(1) is bonded in a 12-coordinate geometry to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 3-31°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent La(1) and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to four equivalent La(1) and two equivalent Mn(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to four equivalent La(1) and two equivalent Mn(1) atoms.
LaMnO3 crystallizes in the orthorhombic Pmc2_1 space group. La(1) is bonded in a 12-coordinate geometry to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. There are a spread of La(1)-O(1) bond distances ranging from 2.68-2.90 Å. There are two shorter (2.46 Å) and two longer (3.30 Å) La(1)-O(2) bond lengths. There are two shorter (2.53 Å) and two longer (3.03 Å) La(1)-O(3) bond lengths. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 3-31°. Both Mn(1)-O(1) bond lengths are 1.98 Å. There is one shorter (1.92 Å) and one longer (2.17 Å) Mn(1)-O(2) bond length. There is one shorter (1.94 Å) and one longer (2.15 Å) Mn(1)-O(3) bond length. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to four equivalent La(1) and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to four equivalent La(1) and two equivalent Mn(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to four equivalent La(1) and two equivalent Mn(1) atoms.