data_[Tb8Mn4Si8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Mn  1.5500  1.4000  0.6483
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.8416]
_cell_length_b [4.1504]
_cell_length_c [10.1130]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.3898]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb2MnSi2]
_chemical_formula_sum '[Tb8 Mn4 Si8]'
_cell_volume [396.4828]
_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  4  0.0053  0.0000  0.6766  1.0
  Tb  Tb1  4  0.1874  0.0000  0.1074  1.0
  Mn  Mn2  4  0.2270  0.5000  0.3816  1.0
  Si  Si3  4  0.0021  0.5000  0.8760  1.0
  Si  Si4  4  0.1397  0.5000  0.5631  1.0
]