data_[Tb2Pm2Cr2N8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  Cr  1.6600  1.4000  0.9400
  N  3.0400  0.6500  0.6300
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [5.5773]
_cell_length_b [5.4844]
_cell_length_c [6.7983]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.1868]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [TbPmCrN4]
_chemical_formula_sum '[Tb2 Pm2 Cr2 N8]'
_cell_volume [197.5600]
_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
[
  Tb  Tb0  2  0.2043  0.2500  0.5378  1
  Pm  Pm1  2  0.2759  0.2500  0.0654  1
  Cr  Cr2  2  0.2414  0.7500  0.3050  1
  N  N3  4  0.0316  0.5045  0.2486  1
  N  N4  2  0.4137  0.7500  0.5624  1
  N  N5  2  0.4423  0.7500  0.1525  1
]