ErFeO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. Fe(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 38-40°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to three equivalent Er(1) and two equivalent Fe(1) atoms. In the second O site, O(2) is bonded to two equivalent Er(1) and two equivalent Fe(1) atoms to form distorted corner-sharing OEr2Fe2 trigonal pyramids.
ErFeO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 8-coordinate geometry to two equivalent O(2) and six equivalent O(1) atoms. There is one shorter (2.19 Å) and one longer (2.26 Å) Er(1)-O(2) bond length. There are a spread of Er(1)-O(1) bond distances ranging from 2.23-2.69 Å. Fe(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing FeO6 octahedra. The corner-sharing octahedral tilt angles range from 38-40°. Both Fe(1)-O(2) bond lengths are 2.02 Å. There are two shorter (2.01 Å) and two longer (2.04 Å) Fe(1)-O(1) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to three equivalent Er(1) and two equivalent Fe(1) atoms. In the second O site, O(2) is bonded to two equivalent Er(1) and two equivalent Fe(1) atoms to form distorted corner-sharing OEr2Fe2 trigonal pyramids.