data_[Mn2Hg2Cl8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mn  1.5500  1.4000  0.6483
  Hg  2.0000  1.5000  1.2450
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.4228]
_cell_length_b [3.8059]
_cell_length_c [6.7771]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.7498]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [MnHgCl4]
_chemical_formula_sum '[Mn2 Hg2 Cl8]'
_cell_volume [329.2230]
_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
[
  Mn  Mn0  2  0.0000  0.5000  0.5000  1
  Hg  Hg1  2  0.0000  0.0000  0.0000  1
  Cl  Cl2  4  0.1095  0.0000  0.7540  1
  Cl  Cl3  4  0.1125  0.5000  0.2941  1
]