data_Rh2Se
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.16
_cell_length_b   5.16
_cell_length_c   6.51
_cell_angle_alpha   106.83
_cell_angle_beta   106.83
_cell_angle_gamma   34.06
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rh2Se
_chemical_formula_sum   'Rh4 Se2'
_cell_volume   92.56
_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
  Rh  Rh0  1  0.54  0.0  0.48  1.0
  Rh  Rh1  1  0.36  0.0  0.72  1.0
  Rh  Rh2  1  0.51  0.0  0.85  1.0
  Rh  Rh3  1  0.4  0.0  0.35  1.0
  Se  Se4  1  0.95  0.0  0.31  1.0
  Se  Se5  1  0.95  0.0  0.89  1.0

data_Rh2Se
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.02
_cell_length_b   5.16
_cell_length_c   6.51
_cell_angle_alpha   106.83
_cell_angle_beta   90.0
_cell_angle_gamma   107.03
_symmetry_Int_Tables_number   2
_chemical_formula_structural   Rh2Se
_chemical_formula_sum   'Rh4 Se2'
_cell_volume   92.56
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.0  0.41  0.12  1.0
  Rh  Rh1  2  0.0  0.44  0.75  1.0
  Se  Se2  2  0.0  0.0  0.71  1.0

Rh Rh Rh Rh Se Se