data_[Ho6Fe4C8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Fe  1.8300  1.4000  0.8525
  C  2.5500  0.7000  0.3000
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.4817]
_cell_length_b [3.2233]
_cell_length_c [6.6486]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.3414]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ho3(FeC2)2]
_chemical_formula_sum '[Ho6 Fe4 C8]'
_cell_volume [245.3497]
_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
[
  Ho  Ho0  4  0.1320  0.5000  0.5282  1
  Ho  Ho1  2  0.0000  0.0000  0.0000  1
  Fe  Fe2  4  0.2312  0.5000  0.1451  1
  C  C3  4  0.1530  0.5000  0.8962  1
  C  C4  4  0.1781  0.0000  0.2812  1
]