data_[Pr4Cr4C4N2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Cr  1.6600  1.4000  0.9400
  C  2.5500  0.7000  0.3000
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.4317]
_cell_length_b [3.4156]
_cell_length_c [6.5610]
_cell_angle_alpha [90.0000]
_cell_angle_beta [122.5719]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pr2Cr2C2N]
_chemical_formula_sum '[Pr4 Cr4 C4 N2]'
_cell_volume [197.0053]
_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  0.0712  0.5000  0.3327  1.0
  Cr  Cr1  4  0.1991  0.0000  0.0791  1.0
  C  C2  4  0.1946  0.0000  0.7632  1.0
  N  N3  2  0.0000  0.0000  0.0000  1.0
]