data_[Na2Hf2Ge2N6]
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
  Ge  2.0100  1.2500  0.7700
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.6187]
_cell_length_b [3.1958]
_cell_length_c [9.0396]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.7772]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaHfGeN3]
_chemical_formula_sum '[Na2 Hf2 Ge2 N6]'
_cell_volume [190.9804]
_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  0.1296  0.7500  0.1953  1
  Hf  Hf1  2  0.3981  0.2500  0.8721  1
  Ge  Ge2  2  0.1388  0.7500  0.5784  1
  N  N3  2  0.1616  0.2500  0.4655  1
  N  N4  2  0.2080  0.7500  0.7737  1
  N  N5  2  0.3825  0.2500  0.0943  1
]