data_Na4PbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.03
_cell_length_b   6.03
_cell_length_c   9.1
_cell_angle_alpha   82.83
_cell_angle_beta   71.0
_cell_angle_gamma   68.94
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na4PbO4
_chemical_formula_sum   'Na8 Pb2 O8'
_cell_volume   292.11
_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
  Na  Na0  1  0.09  0.31  0.56  1.0
  Na  Na1  1  0.07  0.4  0.05  1.0
  Na  Na2  1  0.93  0.48  0.08  1.0
  Na  Na3  1  0.23  0.23  0.53  1.0
  Na  Na4  1  0.96  0.52  0.72  1.0
  Na  Na5  1  0.2  0.19  0.88  1.0
  Na  Na6  1  0.31  0.63  0.84  1.0
  Na  Na7  1  0.85  0.08  0.76  1.0
  Pb  Pb8  1  0.92  0.15  0.64  1.0
  Pb  Pb9  1  0.24  0.55  0.96  1.0
  O  O10  1  0.21  0.94  0.93  1.0
  O  O11  1  0.95  0.77  0.68  1.0
  O  O12  1  0.05  0.74  0.24  1.0
  O  O13  1  0.11  0.97  0.37  1.0
  O  O14  1  0.18  0.62  0.3  1.0
  O  O15  1  0.98  0.08  0.3  1.0
  O  O16  1  0.81  0.82  0.38  1.0
  O  O17  1  0.35  0.89  0.22  1.0

data_Na4PbO4
_symmetry_space_group_name_H-M   P-1
_cell_length_a   6.03
_cell_length_b   6.03
_cell_length_c   9.1
_cell_angle_alpha   82.83
_cell_angle_beta   71.0
_cell_angle_gamma   68.94
_symmetry_Int_Tables_number   2
_chemical_formula_structural   Na4PbO4
_chemical_formula_sum   'Na8 Pb2 O8'
_cell_volume   292.11
_cell_formula_units_Z   2
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  2  0.01  0.96  0.26  1.0
  Na  Na1  2  0.12  0.84  0.58  1.0
  Na  Na2  2  0.15  0.87  0.22  1.0
  Na  Na3  2  0.23  0.28  0.54  1.0
  Pb  Pb4  2  0.16  0.2  0.66  1.0
  O  O5  2  0.03  0.61  0.06  1.0
  O  O6  2  0.1  0.27  0.0  1.0
  O  O7  2  0.13  0.59  0.63  1.0
  O  O8  2  0.27  0.54  0.92  1.0

Na Na Na Na Na Na Na Na Pb Pb O O O O O O O O