data_[Rb4Na4Si4S12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Na  0.9300  1.8000  1.1600
  Si  1.9000  1.1000  0.5400
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [8.6226]
_cell_length_b [9.3036]
_cell_length_c [9.4270]
_cell_angle_alpha [90.0000]
_cell_angle_beta [96.0232]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbNaSiS3]
_chemical_formula_sum '[Rb4 Na4 Si4 S12]'
_cell_volume [752.0768]
_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  0.2093  0.0000  0.1211  1.0
  Na  Na1  4  0.0000  0.2758  0.5000  1.0
  Si  Si2  4  0.1621  0.0000  0.6970  1.0
  S  S3  8  0.1062  0.1882  0.7910  1.0
  S  S4  4  0.2444  0.5000  0.4945  1.0
]