data_[U6Ni2C6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  U  1.3800  1.7500  0.9913
  Ni  1.9100  1.3500  0.7400
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [P6_3/m]
_cell_length_a [7.1580]
_cell_length_b [7.1580]
_cell_length_c [4.8249]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [176]
_chemical_formula_structural [U3NiC3]
_chemical_formula_sum '[U6 Ni2 C6]'
_cell_volume [214.0966]
_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  6  0.0709  0.3543  0.2500  1
  Ni  Ni1  2  0.3333  0.6667  0.7500  1
  C  C2  6  0.0630  0.3908  0.7500  1
]