data_[Hg2W2N4O2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hg  2.0000  1.5000  1.2450
  W  2.3600  1.3500  0.7667
  N  3.0400  0.6500  0.6300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [3.6229]
_cell_length_b [6.6872]
_cell_length_c [5.6305]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [HgWN2O]
_chemical_formula_sum '[Hg2 W2 N4 O2]'
_cell_volume [136.4099]
_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  0.0000  0.3452  0.9512  1
  W  W1  2  0.5000  0.1825  0.4760  1
  N  N2  2  0.0000  0.2749  0.5654  1
  N  N3  2  0.5000  0.0386  0.7991  1
  O  O4  2  0.5000  0.3678  0.2086  1
]