data_[Rb2Sr2Cu2Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sr  0.9500  2.0000  1.3200
  Cu  1.9000  1.3500  0.8200
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [7.0014]
_cell_length_b [7.4455]
_cell_length_c [9.4902]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.4085]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbSrCuBr4]
_chemical_formula_sum '[Rb2 Sr2 Cu2 Br8]'
_cell_volume [466.6012]
_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  2  0.2443  0.2500  0.0576  1
  Sr  Sr1  2  0.2318  0.2500  0.5562  1
  Cu  Cu2  2  0.2222  0.7500  0.3193  1
  Br  Br3  4  0.0169  0.5058  0.7190  1
  Br  Br4  2  0.4104  0.7500  0.1445  1
  Br  Br5  2  0.4369  0.7500  0.5840  1
]