data_[Zr12Hg3N6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Zr  1.3300  1.5500  0.8600
  Hg  2.0000  1.5000  1.2450
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [3.3305]
_cell_length_b [3.3305]
_cell_length_c [37.6315]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Zr4HgN2]
_chemical_formula_sum '[Zr12 Hg3 N6]'
_cell_volume [361.5017]
_cell_formula_units_Z [3]
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
[
  Zr  Zr0  6  0.0000  0.0000  0.1304  1.0
  Zr  Zr1  6  0.0000  0.0000  0.2686  1.0
  Hg  Hg2  3  0.0000  0.0000  0.0000  1.0
  N  N3  6  0.0000  0.0000  0.4303  1.0
]