TmCoO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Tm(1) is bonded in a 8-coordinate geometry to two equivalent O(1) and six equivalent O(2) atoms. Co(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles range from 36-38°. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Tm(1) and two equivalent Co(1) atoms to form distorted corner-sharing OTm2Co2 trigonal pyramids. In the second O site, O(2) is bonded in a 5-coordinate geometry to three equivalent Tm(1) and two equivalent Co(1) atoms.
TmCoO3 is Orthorhombic Perovskite structured and crystallizes in the orthorhombic Pnma space group. Tm(1) is bonded in a 8-coordinate geometry to two equivalent O(1) and six equivalent O(2) atoms. There is one shorter (2.22 Å) and one longer (2.26 Å) Tm(1)-O(1) bond length. There are a spread of Tm(1)-O(2) bond distances ranging from 2.27-2.57 Å. Co(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles range from 36-38°. Both Co(1)-O(1) bond lengths are 1.94 Å. There are two shorter (1.92 Å) and two longer (2.13 Å) Co(1)-O(2) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Tm(1) and two equivalent Co(1) atoms to form distorted corner-sharing OTm2Co2 trigonal pyramids. In the second O site, O(2) is bonded in a 5-coordinate geometry to three equivalent Tm(1) and two equivalent Co(1) atoms.