LaErO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Er(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing ErO6 octahedra. The corner-sharing octahedral tilt angles range from 39-42°. La(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Er(1) and three equivalent La(1) atoms. In the second O site, O(2) is bonded to two equivalent Er(1) and two equivalent La(1) atoms to form distorted corner-sharing OLa2Er2 trigonal pyramids.
LaErO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Er(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing ErO6 octahedra. The corner-sharing octahedral tilt angles range from 39-42°. Both Er(1)-O(2) bond lengths are 2.28 Å. There are two shorter (2.23 Å) and two longer (2.25 Å) Er(1)-O(1) bond lengths. La(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. There is one shorter (2.37 Å) and one longer (2.54 Å) La(1)-O(2) bond length. There are a spread of La(1)-O(1) bond distances ranging from 2.38-3.10 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Er(1) and three equivalent La(1) atoms. In the second O site, O(2) is bonded to two equivalent Er(1) and two equivalent La(1) atoms to form distorted corner-sharing OLa2Er2 trigonal pyramids.