data_[Nd12Mg9Pb3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Nd  1.1400  1.8500  1.2765
  Mg  1.3100  1.5000  0.8600
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [5.5018]
_cell_length_b [5.5018]
_cell_length_c [27.0920]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Nd4Mg3Pb]
_chemical_formula_sum '[Nd12 Mg9 Pb3]'
_cell_volume [710.2034]
_cell_formula_units_Z [3]
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
[
  Nd  Nd0  6  0.0000  0.0000  0.1254  1
  Nd  Nd1  6  0.0000  0.0000  0.3754  1
  Mg  Mg2  6  0.0000  0.0000  0.7540  1
  Mg  Mg3  3  -0.0000  -0.0000  0.5000  1
  Pb  Pb4  3  0.0000  0.0000  0.0000  1
]