data_[Rb6Ca4Br6Cl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ca  1.0000  1.8000  1.1400
  Br  2.9600  1.1500  0.8825
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [5.4116]
_cell_length_b [5.7262]
_cell_length_c [28.0033]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Rb3Ca2Br3Cl4]
_chemical_formula_sum '[Rb6 Ca4 Br6 Cl8]'
_cell_volume [867.7621]
_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  4  0.0000  0.0000  0.3155  1
  Rb  Rb1  2  0.0000  0.0000  0.5000  1
  Ca  Ca2  4  0.0000  0.0000  0.1048  1
  Br  Br3  4  0.0000  0.5000  0.0974  1
  Br  Br4  2  0.0000  0.0000  0.0000  1
  Cl  Cl5  4  0.0000  0.0000  0.2003  1
  Cl  Cl6  4  0.0000  0.5000  0.3962  1
]