data_[Hg2H8N2Cl4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hg  2.0000  1.5000  1.2450
  H  2.2000  0.2500  0.0000
  N  3.0400  0.6500  0.6300
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [8.6559]
_cell_length_b [5.2705]
_cell_length_c [7.3505]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.2112]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [HgH4NCl2]
_chemical_formula_sum '[Hg2 H8 N2 Cl4]'
_cell_volume [335.0849]
_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
[
  Hg  Hg0  2  0.2597  0.0000  0.9699  1.0
  H  H1  4  0.2816  0.3374  0.4500  1.0
  H  H2  2  0.3322  0.5000  0.6421  1.0
  H  H3  2  0.4524  0.5000  0.4621  1.0
  N  N4  2  0.3373  0.5000  0.5019  1.0
  Cl  Cl5  2  0.1762  0.0000  0.3573  1.0
  Cl  Cl6  2  0.2685  0.5000  0.9407  1.0
]