data_[Tb8Mg4Ru8]
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
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.0854]
_cell_length_b [5.4642]
_cell_length_c [8.1456]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.6526]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Tb2MgRu2]
_chemical_formula_sum '[Tb8 Mg4 Ru8]'
_cell_volume [430.0720]
_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  0.1458  0.3371  0.1470  1.0
  Mg  Mg1  4  0.0000  0.1478  0.7500  1.0
  Ru  Ru2  8  0.1367  0.1685  0.5039  1.0
]