The material described by Rh2O3 is Corundum-like structured and crystallizes in the orthorhombic Pbcn space group. Rh(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form a mixture of face, corner, and edge-sharing RhO6 octahedra. The corner-sharing octahedral tilt angles range from 48-71°. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Rh(1) atoms to form a mixture of distorted corner and edge-sharing ORh4 trigonal pyramids. In the second O site, O(2) is bonded to four equivalent Rh(1) atoms to form a mixture of corner and edge-sharing ORh4 tetrahedra. is represented by the CIF card [CIF]
data_Rh2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.188
_cell_length_b   5.390
_cell_length_c   7.274
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   203.432
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Rh  Rh0  1  0.750  0.031  0.106  1.0
  Rh  Rh1  1  0.750  0.469  0.894  1.0
  Rh  Rh2  1  0.750  0.531  0.394  1.0
  Rh  Rh3  1  0.750  0.969  0.606  1.0
  Rh  Rh4  1  0.250  0.969  0.894  1.0
  Rh  Rh5  1  0.250  0.531  0.106  1.0
  Rh  Rh6  1  0.250  0.469  0.606  1.0
  Rh  Rh7  1  0.250  0.031  0.394  1.0
  O  O8  1  0.051  0.250  0.000  1.0
  O  O9  1  0.449  0.750  0.500  1.0
  O  O10  1  0.949  0.750  0.000  1.0
  O  O11  1  0.551  0.250  0.500  1.0
  O  O12  1  0.606  0.112  0.849  1.0
  O  O13  1  0.606  0.388  0.151  1.0
  O  O14  1  0.894  0.612  0.651  1.0
  O  O15  1  0.894  0.888  0.349  1.0
  O  O16  1  0.394  0.888  0.151  1.0
  O  O17  1  0.394  0.612  0.849  1.0
  O  O18  1  0.106  0.388  0.349  1.0
  O  O19  1  0.106  0.112  0.651  1.0
[/CIF]
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The material described by Rh2O3 is Corundum-like structured and crystallizes in the orthorhombic Pbcn space group. Rh(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form a mixture of face, corner, and edge-sharing RhO6 octahedra. The corner-sharing octahedral tilt angles range from 48-71°. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Rh(1) atoms to form a mixture of distorted corner and edge-sharing ORh4 trigonal pyramids. In the second O site, O(2) is bonded to four equivalent Rh(1) atoms to form a mixture of corner and edge-sharing ORh4 tetrahedra. is represented by the CIF card [CIF]
data_Rh2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.188
_cell_length_b   5.390
_cell_length_c   7.274
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   203.432
_cell_formula_units_Z   4
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Rh  Rh0  1  0.750  0.031  0.106  1.0
  Rh  Rh1  1  0.750  0.469  0.894  1.0
  Rh  Rh2  1  0.750  0.531  0.394  1.0
  Rh  Rh3  1  0.750  0.969  0.606  1.0
  Rh  Rh4  1  0.250  0.969  0.894  1.0
  Rh  Rh5  1  0.250  0.531  0.106  1.0
  Rh  Rh6  1  0.250  0.469  0.606  1.0
  Rh  Rh7  1  0.250  0.031  0.394  1.0
  O  O8  1  0.051  0.250  0.000  1.0
  O  O9  1  0.449  0.750  0.500  1.0
  O  O10  1  0.949  0.750  0.000  1.0
  O  O11  1  0.551  0.250  0.500  1.0
  O  O12  1  0.606  0.112  0.849  1.0
  O  O13  1  0.606  0.388  0.151  1.0
  O  O14  1  0.894  0.612  0.651  1.0
  O  O15  1  0.894  0.888  0.349  1.0
  O  O16  1  0.394  0.888  0.151  1.0
  O  O17  1  0.394  0.612  0.849  1.0
  O  O18  1  0.106  0.388  0.349  1.0
  O  O19  1  0.106  0.112  0.651  1.0
[/CIF]
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