data_Na2PbW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.97
_cell_length_b   5.38
_cell_length_c   5.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2PbW
_chemical_formula_sum   'Na2 Pb1 W1'
_cell_volume   91.28
_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  0.49  0.69  0.33  1.0
  Na  Na1  1  0.49  0.69  0.38  1.0
  Pb  Pb2  1  0.0  0.0  0.86  1.0
  W  W3  1  0.0  0.0  0.0  1.0

data_Na2PbW
_symmetry_space_group_name_H-M   Pm
_cell_length_a   5.38
_cell_length_b   2.97
_cell_length_c   5.71
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   Na2PbW
_chemical_formula_sum   'Na2 Pb1 W1'
_cell_volume   91.28
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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  0.69  0.5  0.33  1.0
  Na  Na1  1  0.69  0.5  0.38  1.0
  Pb  Pb2  1  0.0  0.0  0.86  1.0
  W  W3  1  0.0  0.0  0.0  1.0

Na Na Pb W