data_[Ac6Nd3Pb3O18]
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 [R3]
_cell_length_a [6.3080]
_cell_length_b [6.3080]
_cell_length_c [15.8867]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Ac2NdPbO6]
_chemical_formula_sum '[Ac6 Nd3 Pb3 O18]'
_cell_volume [547.4576]
_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
[
  Ac  Ac0  3  0.0000  0.0000  0.4691  1
  Ac  Ac1  3  0.0000  0.0000  0.9677  1
  Nd  Nd2  3  0.0000  0.0000  0.1934  1
  Pb  Pb3  3  0.0000  0.0000  0.6919  1
  O  O4  9  0.0612  0.6956  0.2522  1
  O  O5  9  0.0633  0.3754  0.7533  1
]