data_[K2U2Cr2N8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  U  1.3800  1.7500  0.9913
  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 [5.7469]
_cell_length_b [5.5480]
_cell_length_c [7.6026]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.1115]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [KUCrN4]
_chemical_formula_sum '[K2 U2 Cr2 N8]'
_cell_volume [231.6705]
_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
[
  K  K0  2  0.2985  0.2500  0.0697  1
  U  U1  2  0.2255  0.2500  0.5499  1
  Cr  Cr2  2  0.2360  0.7500  0.3403  1
  N  N3  4  0.0303  0.5091  0.3292  1
  N  N4  2  0.4461  0.7500  0.5529  1
  N  N5  2  0.4487  0.7500  0.2160  1
]