data_[Rb4Be2Cl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Be  1.5700  1.0500  0.5900
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.9038]
_cell_length_b [6.9492]
_cell_length_c [9.5263]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.2046]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Rb2BeCl4]
_chemical_formula_sum '[Rb4 Be2 Cl8]'
_cell_volume [438.8726]
_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  0.2077  0.2500  0.4338  1.0
  Rb  Rb1  2  0.2873  0.2500  0.9644  1.0
  Be  Be2  2  0.3101  0.7500  0.2203  1.0
  Cl  Cl3  4  0.4899  0.5135  0.2727  1.0
  Cl  Cl4  2  0.0985  0.7500  0.3350  1.0
  Cl  Cl5  2  0.1791  0.7500  0.9994  1.0
]