data_[Na8Mn4N8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mn  1.5500  1.4000  0.6483
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [6.0645]
_cell_length_b [4.8897]
_cell_length_c [10.6087]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [Na2MnN2]
_chemical_formula_sum '[Na8 Mn4 N8]'
_cell_volume [314.5855]
_cell_formula_units_Z [4]
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  4  0.0769  0.2500  0.3185  1.0
  Na  Na1  4  0.1807  0.2500  0.9642  1.0
  Mn  Mn2  4  0.2272  0.2500  0.6698  1.0
  N  N3  4  0.0419  0.7500  0.2684  1.0
  N  N4  4  0.2355  0.7500  0.0186  1.0
]