data_[Rb2Cr2Cu2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Cr  1.6600  1.4000  0.9400
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Pm]
_cell_length_a [4.6345]
_cell_length_b [4.3118]
_cell_length_c [10.4297]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.1240]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [6]
_chemical_formula_structural [RbCrCu]
_chemical_formula_sum '[Rb2 Cr2 Cu2]'
_cell_volume [208.4197]
_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
[
  Rb  Rb0  1  0.3845  0.0000  0.3184  1
  Rb  Rb1  1  0.8770  0.5000  0.8940  1
  Cr  Cr2  1  0.0885  0.0000  0.6273  1
  Cr  Cr3  1  0.6958  0.0000  0.6260  1
  Cu  Cu4  1  0.3919  0.5000  0.6023  1
  Cu  Cu5  1  0.8917  0.5000  0.5381  1
]