data_[Ac14Hg2Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Hg  2.0000  1.5000  1.2450
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.7677]
_cell_length_b [6.0879]
_cell_length_c [12.0649]
_cell_angle_alpha [90.0000]
_cell_angle_beta [126.9092]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac7HgPb4]
_chemical_formula_sum '[Ac14 Hg2 Pb8]'
_cell_volume [984.7645]
_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  4  0.0783  0.0000  0.3185  1
  Ac  Ac1  4  0.1484  0.5000  0.5674  1
  Ac  Ac2  4  0.2053  0.0000  0.8646  1
  Ac  Ac3  2  0.0000  0.5000  0.0000  1
  Hg  Hg4  2  0.0000  0.0000  0.0000  1
  Pb  Pb5  4  0.0785  0.5000  0.7826  1
  Pb  Pb6  4  0.2167  0.5000  0.3373  1
]