data_[Ac16Tc4Hg4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Tc  1.9000  1.3500  0.7417
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.4704]
_cell_length_b [13.8905]
_cell_length_c [6.7796]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.1028]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Ac4TcHg]
_chemical_formula_sum '[Ac16 Tc4 Hg4]'
_cell_volume [847.6997]
_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  8  0.1066  0.1688  0.5478  1
  Ac  Ac1  8  0.2166  0.4219  0.8932  1
  Tc  Tc2  4  0.0000  0.0016  0.2500  1
  Hg  Hg3  4  0.0000  0.3779  0.2500  1
]