data_[Tb2Np2C2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Np  1.3600  1.7500  1.0000
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [I4mm]
_cell_length_a [3.1338]
_cell_length_b [3.1338]
_cell_length_c [11.6202]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [107]
_chemical_formula_structural [TbNpC]
_chemical_formula_sum '[Tb2 Np2 C2]'
_cell_volume [114.1196]
_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
[
  Tb  Tb0  2  0.0000  0.0000  0.9081  1
  Np  Np1  2  0.0000  0.0000  0.6700  1
  C  C2  2  0.0000  0.0000  0.2719  1
]