data_[Rb4Lu8Cu4Se4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Lu  1.2700  1.7500  1.0010
  Cu  1.9000  1.3500  0.8200
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.5267]
_cell_length_b [12.0871]
_cell_length_c [12.5131]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbLu2CuSeO3]
_chemical_formula_sum '[Rb4 Lu8 Cu4 Se4 O12]'
_cell_volume [533.4022]
_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
[
  Rb  Rb0  4  0.0000  0.1495  0.7500  1
  Lu  Lu1  8  0.0000  0.3667  0.5397  1
  Cu  Cu2  4  0.0000  0.1645  0.2500  1
  Se  Se3  4  0.0000  0.4516  0.7500  1
  O  O4  8  0.0000  0.2395  0.0860  1
  O  O5  4  0.0000  0.0000  0.0000  1
]