data_[Ac2Al2Pb4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Al  1.6100  1.2500  0.6750
  Pb  2.3300  1.8000  1.1225
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmmm]
_cell_length_a [6.7294]
_cell_length_b [7.2199]
_cell_length_c [7.1434]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [AcAl(PbO4)2]
_chemical_formula_sum '[Ac2 Al2 Pb4 O16]'
_cell_volume [347.0677]
_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  2  0.0000  0.0000  0.5000  1
  Al  Al1  2  0.0000  0.0000  0.0000  1
  Pb  Pb2  4  0.0000  0.5000  0.2285  1
  O  O3  8  0.1870  0.0000  0.2010  1
  O  O4  4  0.0000  0.2765  0.0000  1
  O  O5  4  0.0000  0.3313  0.5000  1
]