data_[K2Na4Pb4Br14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Na  0.9300  1.8000  1.1600
  Pb  2.3300  1.8000  1.1225
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [6.0659]
_cell_length_b [24.3624]
_cell_length_c [6.0557]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [KNa2Pb2Br7]
_chemical_formula_sum '[K2 Na4 Pb4 Br14]'
_cell_volume [894.9096]
_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  2  0.0000  0.0000  0.8184  1
  Na  Na1  4  0.0000  0.2496  0.5111  1
  Pb  Pb2  4  0.0000  0.3768  0.0031  1
  Br  Br3  4  0.0000  0.1217  0.5218  1
  Br  Br4  4  0.0000  0.2534  0.0113  1
  Br  Br5  4  0.0000  0.3736  0.5074  1
  Br  Br6  2  0.0000  0.5000  0.0728  1
]