data_[U2B2C4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  U  1.3800  1.7500  0.9913
  B  2.0400  0.8500  0.4100
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [3.4130]
_cell_length_b [4.9304]
_cell_length_c [5.2481]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.4231]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [UBC2]
_chemical_formula_sum '[U2 B2 C4]'
_cell_volume [86.5634]
_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  0.3577  0.2500  0.2250  1
  B  B1  2  0.0360  0.7500  0.3296  1
  C  C2  2  0.0000  0.0000  0.5000  1
  C  C3  2  0.2567  0.7500  0.0895  1
]