data_[Fe6Co6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Fe  1.8300  1.4000  0.8525
  Co  1.8800  1.3500  0.7683
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [2.5155]
_cell_length_b [2.5155]
_cell_length_c [25.0545]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [FeCo]
_chemical_formula_sum '[Fe6 Co6]'
_cell_volume [137.2979]
_cell_formula_units_Z [6]
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
[
  Fe  Fe0  6  0.0000  0.0000  0.3764  1
  Co  Co1  6  0.0000  0.0000  0.1267  1
]