data_[Na4Nd2Tl2Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Nd  1.1400  1.8500  1.2765
  Tl  1.6200  1.9000  1.3325
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.7979]
_cell_length_b [9.7862]
_cell_length_c [7.9238]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [Na2NdTlPb2]
_chemical_formula_sum '[Na4 Nd2 Tl2 Pb4]'
_cell_volume [372.0522]
_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  2  0.0000  0.1727  0.3542  1.0
  Na  Na1  2  0.5000  0.0595  0.0565  1.0
  Nd  Nd2  2  0.0000  0.4522  0.9689  1.0
  Tl  Tl3  2  0.5000  0.3185  0.6438  1.0
  Pb  Pb4  2  0.0000  0.1524  0.7791  1.0
  Pb  Pb5  2  0.5000  0.3711  0.2432  1.0
]