data_[Ac6Hg2C2]
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
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [8.7562]
_cell_length_b [4.1097]
_cell_length_c [9.1537]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.2539]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Ac3HgC]
_chemical_formula_sum '[Ac6 Hg2 C2]'
_cell_volume [325.1100]
_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  2  0.0582  0.2500  0.3358  1
  Ac  Ac1  2  0.2628  0.2500  0.9280  1
  Ac  Ac2  2  0.3534  0.7500  0.6089  1
  Hg  Hg3  2  0.3599  0.7500  0.2184  1
  C  C4  2  0.1536  0.2500  0.6410  1
]