data_[Hf2N2Cl2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Hf  1.3000  1.5500  0.8500
  N  3.0400  0.6500  0.6300
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [3.4982]
_cell_length_b [4.1438]
_cell_length_c [8.8754]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [HfNCl]
_chemical_formula_sum '[Hf2 N2 Cl2]'
_cell_volume [128.6583]
_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
[
  Hf  Hf0  2  0.0000  0.5000  0.9015  1.0
  N  N1  2  0.0000  0.0000  0.9615  1.0
  Cl  Cl2  2  0.0000  0.0000  0.3155  1.0
]