data_[Na2P2N4F2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  P  2.1900  1.0000  0.5500
  N  3.0400  0.6500  0.6300
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.8023]
_cell_length_b [3.5269]
_cell_length_c [7.1709]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.9318]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaPN2F]
_chemical_formula_sum '[Na2 P2 N4 F2]'
_cell_volume [138.8103]
_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  0.4237  0.7500  0.6781  1
  P  P1  2  0.0340  0.7500  0.1463  1
  N  N2  2  0.0116  0.2500  0.1011  1
  N  N3  2  0.2805  0.7500  0.3281  1
  F  F4  2  0.2260  0.2500  0.7940  1
]