[CIF]
data_Na4NbPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.16168295
_cell_length_b   6.16168295
_cell_length_c   6.16168295
_cell_angle_alpha   60.00000000
_cell_angle_beta   60.00000000
_cell_angle_gamma   60.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na4NbPb
_chemical_formula_sum   'Na4 Nb1 Pb1'
_cell_volume   165.41810701
_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
  Na  Na0  1  3.26491494  3.26491494  5.44902066  1
  Na  Na1  1  3.26491494  5.44902066  3.26491494  1
  Na  Na2  1  5.44902066  3.26491494  3.26491494  1
  Na  Na3  1  5.44902066  5.44902066  5.44902066  1
  Nb  Nb4  1  0.00000000  0.00000000  0.00000000  1
  Pb  Pb5  1  2.17848390  2.17848390  2.17848390  1
[/CIF]
