data_[Rb2Y2Si2S8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Y  1.2200  1.8000  1.0400
  Si  1.9000  1.1000  0.5400
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.4217]
_cell_length_b [6.6791]
_cell_length_c [9.0744]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.8246]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [RbYSiS4]
_chemical_formula_sum '[Rb2 Y2 Si2 S8]'
_cell_volume [370.5284]
_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  0.2686  0.2500  0.0636  1.0
  Y  Y1  2  0.2268  0.2500  0.5480  1.0
  Si  Si2  2  0.2228  0.7500  0.3345  1.0
  S  S3  4  0.0008  0.5018  0.2983  1.0
  S  S4  2  0.4173  0.7500  0.1844  1.0
  S  S5  2  0.4239  0.7500  0.5682  1.0
]