data_[Na2As2N2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  As  2.1800  1.1500  0.6600
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.7478]
_cell_length_b [3.1522]
_cell_length_c [6.2362]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.2932]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaAsN]
_chemical_formula_sum '[Na2 As2 N2]'
_cell_volume [100.4113]
_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  0.4403  0.7500  0.7515  1
  As  As1  2  0.0367  0.7500  0.2162  1
  N  N2  2  0.2010  0.7500  0.0081  1
]