data_[Ac8Nd4Pb6O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Nd  1.1400  1.8500  1.2765
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [I4/mmm]
_cell_length_a [5.1018]
_cell_length_b [5.1018]
_cell_length_c [27.0069]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [139]
_chemical_formula_structural [Ac4Nd2Pb3O2]
_chemical_formula_sum '[Ac8 Nd4 Pb6 O4]'
_cell_volume [702.9445]
_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
[
  Ac  Ac0  8  0.0000  0.5000  0.0852  1
  Nd  Nd1  4  0.0000  0.0000  0.3031  1
  Pb  Pb2  4  0.0000  0.0000  0.1818  1
  Pb  Pb3  2  0.0000  0.0000  0.0000  1
  O  O4  4  0.0000  0.0000  0.3929  1
]