data_[Rb4Gd8Cu12Se16O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Gd  1.2000  1.8000  1.0750
  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 [4.1269]
_cell_length_b [14.9398]
_cell_length_c [16.0017]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [RbGd2Cu3Se4O]
_chemical_formula_sum '[Rb4 Gd8 Cu12 Se16 O4]'
_cell_volume [986.5867]
_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  0.0585  0.7500  1
  Gd  Gd1  8  0.0000  0.1996  0.1136  1
  Cu  Cu2  8  0.0000  0.4119  0.0355  1
  Cu  Cu3  4  0.0000  0.3589  0.7500  1
  Se  Se4  8  0.0000  0.1687  0.5746  1
  Se  Se5  8  0.0000  0.4388  0.6172  1
  O  O6  4  0.0000  0.2104  0.2500  1
]