data_[Rb6Na2S4]
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
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [21.8651]
_cell_length_b [5.3357]
_cell_length_c [9.1667]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Rb3NaS2]
_chemical_formula_sum '[Rb6 Na2 S4]'
_cell_volume [1069.4406]
_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  0.3430  0.2189  0.6711  1
  Rb  Rb1  2  0.5000  0.4549  0.0715  1
  Na  Na2  2  0.5000  0.0318  0.3428  1
  S  S3  4  0.3980  0.2813  0.3373  1
]