data_[Cs4Rb4Na2As8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.7150]
_cell_length_b [5.3435]
_cell_length_c [10.2126]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.8660]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Cs2Rb2NaAs4]
_chemical_formula_sum '[Cs4 Rb4 Na2 As8]'
_cell_volume [652.5832]
_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
[
  Cs  Cs0  4  0.1199  0.0000  0.3923  1
  Rb  Rb1  4  0.2417  0.0000  0.8365  1
  Na  Na2  2  0.0000  0.0000  0.0000  1
  As  As3  4  0.0381  0.5000  0.8271  1
  As  As4  4  0.0841  0.5000  0.6124  1
]