data_[Na4Si8As4S24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Si  1.9000  1.1000  0.5400
  As  2.1800  1.1500  0.6600
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [12.6922]
_cell_length_b [11.0744]
_cell_length_c [6.8533]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.6055]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [NaSi2AsS6]
_chemical_formula_sum '[Na4 Si8 As4 S24]'
_cell_volume [907.4386]
_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
[
  Na  Na0  4  0.0000  0.1242  0.2500  1
  Si  Si1  8  0.2131  0.4100  0.1951  1
  As  As2  4  0.0000  0.2428  0.7500  1
  S  S3  8  0.1057  0.0906  0.6615  1
  S  S4  8  0.1475  0.4567  0.4486  1
  S  S5  8  0.1491  0.2361  0.1185  1
]