data_[U2B3C1]
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 [Pmm2]
_cell_length_a [2.9979]
_cell_length_b [4.0911]
_cell_length_c [5.1896]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [U2B3C]
_chemical_formula_sum '[U2 B3 C1]'
_cell_volume [63.6491]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.4984  1
  U  U1  1  0.5000  0.0000  0.0013  1
  B  B2  1  0.0000  0.5000  0.1678  1
  B  B3  1  0.0000  0.5000  0.8254  1
  B  B4  1  0.5000  0.5000  0.3428  1
  C  C5  1  0.5000  0.5000  0.6643  1
]