data_[Na2Hf6Zr4N12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Hf  1.3000  1.5500  0.8500
  Zr  1.3300  1.5500  0.8600
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.0918]
_cell_length_b [3.2276]
_cell_length_c [6.5435]
_cell_angle_alpha [90.0000]
_cell_angle_beta [103.5647]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaHf3Zr2N6]
_chemical_formula_sum '[Na2 Hf6 Zr4 N12]'
_cell_volume [289.3108]
_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
[
  Na  Na0  2  0.0000  0.5000  0.0000  1.0
  Hf  Hf1  4  0.1613  0.0000  0.8358  1.0
  Hf  Hf2  2  0.0000  0.5000  0.5000  1.0
  Zr  Zr3  4  0.1640  0.0000  0.3306  1.0
  N  N4  4  0.0009  0.0000  0.7297  1.0
  N  N5  4  0.1646  0.5000  0.5915  1.0
  N  N6  4  0.1733  0.5000  0.0799  1.0
]