data_[Gd4Ru4C8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Gd  1.2000  1.8000  1.0750
  Ru  2.2000  1.3000  0.6610
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.3766]
_cell_length_b [9.3054]
_cell_length_c [5.2503]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [GdRuC2]
_chemical_formula_sum '[Gd4 Ru4 C8]'
_cell_volume [213.8247]
_cell_formula_units_Z [4]
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
[
  Gd  Gd0  4  0.0000  0.1830  0.7500  1.0
  Ru  Ru1  4  0.0000  0.5000  0.0000  1.0
  C  C2  8  0.1572  0.9154  0.7500  1.0
]