data_[Ac4Ag20Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Ag  1.9300  1.6000  1.0867
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [9.2198]
_cell_length_b [5.8307]
_cell_length_c [11.5645]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [AcAg5Hg]
_chemical_formula_sum '[Ac4 Ag20 Hg4]'
_cell_volume [621.6824]
_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  0.2398  0.2500  0.0638  1
  Ag  Ag1  8  0.0654  0.0060  0.3105  1
  Ag  Ag2  4  0.0684  0.7500  0.0968  1
  Ag  Ag3  4  0.0960  0.2500  0.5184  1
  Ag  Ag4  4  0.1830  0.2500  0.7572  1
  Hg  Hg5  4  0.1385  0.7500  0.8572  1
]