data_[Tb20Mg4Co4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Mg  1.3100  1.5000  0.8600
  Co  1.8800  1.3500  0.7683
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.0891]
_cell_length_b [7.5015]
_cell_length_c [11.8829]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.0725]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Tb5MgCo]
_chemical_formula_sum '[Tb20 Mg4 Co4]'
_cell_volume [774.4944]
_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
[
  Tb  Tb0  8  0.1285  0.3278  0.0715  1
  Tb  Tb1  8  0.2405  0.1566  0.6199  1
  Tb  Tb2  4  0.0000  0.0256  0.2500  1
  Mg  Mg3  4  0.0000  0.3858  0.7500  1
  Co  Co4  4  0.0000  0.0000  0.0000  1
]