data_[Cs3Na1Pb2Br9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  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 [P-3m1]
_cell_length_a [8.2988]
_cell_length_b [8.2988]
_cell_length_c [10.1594]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [Cs3NaPb2Br9]
_chemical_formula_sum '[Cs3 Na1 Pb2 Br9]'
_cell_volume [605.9362]
_cell_formula_units_Z [1]
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
[
  Cs  Cs0  2  0.3333  0.6667  0.3464  1.0
  Cs  Cs1  1  0.0000  0.0000  0.0000  1.0
  Na  Na2  1  0.0000  0.0000  0.5000  1.0
  Pb  Pb3  2  0.3333  0.6667  0.8253  1.0
  Br  Br4  6  0.1684  0.3368  0.6651  1.0
  Br  Br5  3  0.0000  0.5000  0.0000  1.0
]