The structure described by RhNbO4 is Hydrophilite-derived structured and crystallizes in the tetragonal I4_1md space group. Nb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NbO6 octahedra that share corners with four equivalent Nb(1)O6 octahedra, corners with four equivalent Rh(1)O6 octahedra, and edges with two equivalent Rh(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. Rh(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form RhO6 octahedra that share corners with four equivalent Nb(1)O6 octahedra, corners with four equivalent Rh(1)O6 octahedra, and edges with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-50°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Nb(1) and one Rh(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Nb(1) and two equivalent Rh(1) atoms. is represented by the CIF file [CIF]
data_NbRhO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.634
_cell_length_b   5.634
_cell_length_c   5.634
_cell_angle_alpha   106.663
_cell_angle_beta   106.663
_cell_angle_gamma   115.248
_symmetry_Int_Tables_number   1
_cell_volume   136.587
_cell_formula_units_Z   2
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
  Nb  Nb0  1  0.766  0.266  0.500  1.0
  Nb  Nb1  1  0.516  0.516  0.000  1.0
  Rh  Rh2  1  0.248  0.748  0.500  1.0
  Rh  Rh3  1  0.998  0.998  0.000  1.0
  O  O4  1  0.448  0.253  0.195  1.0
  O  O5  1  0.945  0.740  0.205  1.0
  O  O6  1  0.503  0.808  0.305  1.0
  O  O7  1  0.990  0.285  0.295  1.0
  O  O8  1  0.990  0.695  0.705  1.0
  O  O9  1  0.503  0.198  0.695  1.0
  O  O10  1  0.058  0.253  0.805  1.0
  O  O11  1  0.535  0.740  0.795  1.0
[/CIF]
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The structure described by RhNbO4 is Hydrophilite-derived structured and crystallizes in the tetragonal I4_1md space group. Nb(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NbO6 octahedra that share corners with four equivalent Nb(1)O6 octahedra, corners with four equivalent Rh(1)O6 octahedra, and edges with two equivalent Rh(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. Rh(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form RhO6 octahedra that share corners with four equivalent Nb(1)O6 octahedra, corners with four equivalent Rh(1)O6 octahedra, and edges with two equivalent Nb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-50°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Nb(1) and one Rh(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Nb(1) and two equivalent Rh(1) atoms. is represented by the CIF file [CIF]
data_NbRhO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.634
_cell_length_b   5.634
_cell_length_c   5.634
_cell_angle_alpha   106.663
_cell_angle_beta   106.663
_cell_angle_gamma   115.248
_symmetry_Int_Tables_number   1
_cell_volume   136.587
_cell_formula_units_Z   2
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
  Nb  Nb0  1  0.766  0.266  0.500  1.0
  Nb  Nb1  1  0.516  0.516  0.000  1.0
  Rh  Rh2  1  0.248  0.748  0.500  1.0
  Rh  Rh3  1  0.998  0.998  0.000  1.0
  O  O4  1  0.448  0.253  0.195  1.0
  O  O5  1  0.945  0.740  0.205  1.0
  O  O6  1  0.503  0.808  0.305  1.0
  O  O7  1  0.990  0.285  0.295  1.0
  O  O8  1  0.990  0.695  0.705  1.0
  O  O9  1  0.503  0.198  0.695  1.0
  O  O10  1  0.058  0.253  0.805  1.0
  O  O11  1  0.535  0.740  0.795  1.0
[/CIF]
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