data_[Pr4C2Se4N4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  C  2.5500  0.7000  0.3000
  Se  2.5500  1.1500  1.0133
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.6949]
_cell_length_b [4.3356]
_cell_length_c [7.1501]
_cell_angle_alpha [90.0000]
_cell_angle_beta [97.8433]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pr2C(SeN)2]
_chemical_formula_sum '[Pr4 C2 Se4 N4]'
_cell_volume [297.7287]
_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
[
  Pr  Pr0  4  0.1811  0.5000  0.2580  1.0
  Se  Se1  4  0.1278  0.5000  0.8372  1.0
  C  C2  2  0.0000  0.0000  0.5000  1.0
  N  N3  4  0.1171  0.0000  0.4490  1.0
]