data_[U2Nb2Cr2C6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  U  1.3800  1.7500  0.9913
  Nb  1.6000  1.4500  0.8200
  Cr  1.6600  1.4000  0.9400
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.9144]
_cell_length_b [3.1377]
_cell_length_c [7.3331]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.4473]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [UNbCrC3]
_chemical_formula_sum '[U2 Nb2 Cr2 C6]'
_cell_volume [155.9269]
_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
[
  U  U0  2  0.1754  0.7500  0.1969  1
  Nb  Nb1  2  0.3533  0.2500  0.8570  1
  Cr  Cr2  2  0.1098  0.7500  0.5966  1
  C  C3  2  0.1169  0.7500  0.8649  1
  C  C4  2  0.1882  0.2500  0.4743  1
  C  C5  2  0.4210  0.2500  0.1609  1
]