data_[K4Nb2Ag2S8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Nb  1.6000  1.4500  0.8200
  Ag  1.9300  1.6000  1.0867
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [P1]
_cell_length_a [5.9647]
_cell_length_b [7.3894]
_cell_length_c [11.9321]
_cell_angle_alpha [84.2104]
_cell_angle_beta [75.5260]
_cell_angle_gamma [66.1969]
_symmetry_Int_Tables_number [1]
_chemical_formula_structural [K2NbAgS4]
_chemical_formula_sum '[K4 Nb2 Ag2 S8]'
_cell_volume [465.9022]
_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
[
  K  K0  1  0.1920  0.2458  0.1087  1
  K  K1  1  0.4516  0.7524  0.6095  1
  K  K2  1  0.5526  0.2508  0.3856  1
  K  K3  1  0.8113  0.7455  0.8916  1
  Nb  Nb4  1  0.3710  0.2569  0.7486  1
  Nb  Nb5  1  0.6266  0.7433  0.2486  1
  Ag  Ag6  1  0.1213  0.7470  0.2478  1
  Ag  Ag7  1  0.8706  0.2516  0.7467  1
  S  S8  1  0.1205  0.4471  0.6339  1
  S  S9  1  0.2134  0.0459  0.8647  1
  S  S10  1  0.2544  0.9549  0.3688  1
  S  S11  1  0.4382  0.4530  0.8635  1
  S  S12  1  0.5739  0.5493  0.1362  1
  S  S13  1  0.7506  0.0432  0.6383  1
  S  S14  1  0.7936  0.9522  0.1309  1
  S  S15  1  0.8776  0.5525  0.3662  1
]