data_[K12As4Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  As  2.1800  1.1500  0.6600
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_13]
_cell_length_a [9.7636]
_cell_length_b [9.7636]
_cell_length_c [9.7636]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [198]
_chemical_formula_structural [K3AsSe3]
_chemical_formula_sum '[K12 As4 Se12]'
_cell_volume [930.7567]
_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
[
  K  K0  4  0.0791  0.9209  0.4209  1
  K  K1  4  0.1831  0.6831  0.8169  1
  K  K2  4  0.1869  0.3131  0.6869  1
  As  As3  4  0.0228  0.0228  0.0228  1
  Se  Se4  12  0.0049  0.7884  0.0989  1
]