The material described by CuRh2Se4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Rh(1) is bonded to six equivalent Se(1) atoms to form RhSe6 octahedra that share corners with six equivalent Cu(1)Se4 tetrahedra and edges with six equivalent Rh(1)Se6 octahedra. Cu(1) is bonded to four equivalent Se(1) atoms to form CuSe4 tetrahedra that share corners with twelve equivalent Rh(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 58°. Se(1) is bonded to three equivalent Rh(1) and one Cu(1) atom to form a mixture of distorted edge and corner-sharing SeCuRh3 trigonal pyramids. is represented by the CIF card [CIF]
data_Cu(RhSe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.286
_cell_length_b   7.286
_cell_length_c   7.286
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   273.504
_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
  Cu  Cu0  1  0.875  0.875  0.875  1.0
  Cu  Cu1  1  0.125  0.125  0.125  1.0
  Rh  Rh2  1  0.500  0.500  0.500  1.0
  Rh  Rh3  1  0.500  0.000  0.500  1.0
  Rh  Rh4  1  0.000  0.500  0.500  1.0
  Rh  Rh5  1  0.500  0.500  0.000  1.0
  Se  Se6  1  0.259  0.259  0.723  1.0
  Se  Se7  1  0.741  0.741  0.741  1.0
  Se  Se8  1  0.741  0.741  0.277  1.0
  Se  Se9  1  0.259  0.723  0.259  1.0
  Se  Se10  1  0.259  0.259  0.259  1.0
  Se  Se11  1  0.277  0.741  0.741  1.0
  Se  Se12  1  0.741  0.277  0.741  1.0
  Se  Se13  1  0.723  0.259  0.259  1.0
[/CIF]
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The material described by CuRh2Se4 is Spinel structured and crystallizes in the cubic Fd-3m space group. Rh(1) is bonded to six equivalent Se(1) atoms to form RhSe6 octahedra that share corners with six equivalent Cu(1)Se4 tetrahedra and edges with six equivalent Rh(1)Se6 octahedra. Cu(1) is bonded to four equivalent Se(1) atoms to form CuSe4 tetrahedra that share corners with twelve equivalent Rh(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 58°. Se(1) is bonded to three equivalent Rh(1) and one Cu(1) atom to form a mixture of distorted edge and corner-sharing SeCuRh3 trigonal pyramids. is represented by the CIF card [CIF]
data_Cu(RhSe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.286
_cell_length_b   7.286
_cell_length_c   7.286
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   273.504
_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
  Cu  Cu0  1  0.875  0.875  0.875  1.0
  Cu  Cu1  1  0.125  0.125  0.125  1.0
  Rh  Rh2  1  0.500  0.500  0.500  1.0
  Rh  Rh3  1  0.500  0.000  0.500  1.0
  Rh  Rh4  1  0.000  0.500  0.500  1.0
  Rh  Rh5  1  0.500  0.500  0.000  1.0
  Se  Se6  1  0.259  0.259  0.723  1.0
  Se  Se7  1  0.741  0.741  0.741  1.0
  Se  Se8  1  0.741  0.741  0.277  1.0
  Se  Se9  1  0.259  0.723  0.259  1.0
  Se  Se10  1  0.259  0.259  0.259  1.0
  Se  Se11  1  0.277  0.741  0.741  1.0
  Se  Se12  1  0.741  0.277  0.741  1.0
  Se  Se13  1  0.723  0.259  0.259  1.0
[/CIF]
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