data_[Ac8H4Pb4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  H  2.2000  0.2500  0.0000
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [P2/c]
_cell_length_a [6.9115]
_cell_length_b [6.5894]
_cell_length_c [12.1308]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.8324]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [Ac2HPb]
_chemical_formula_sum '[Ac8 H4 Pb4]'
_cell_volume [492.9830]
_cell_formula_units_Z [4]
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  4  0.0254  0.2333  0.9286  1
  Ac  Ac1  4  0.2943  0.2877  0.3194  1
  H  H2  4  0.0043  0.1373  0.3717  1
  Pb  Pb3  4  0.4911  0.2134  0.8728  1
]