data_[Tb4Y6Si8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Y  1.2200  1.8000  1.0400
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [7.6609]
_cell_length_b [7.7140]
_cell_length_c [7.4305]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.3855]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Tb2Y3Si4]
_chemical_formula_sum '[Tb4 Y6 Si8]'
_cell_volume [421.2787]
_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
[
  Tb  Tb0  4  0.2002  0.1818  0.0882  1
  Y  Y1  4  0.2424  0.6813  0.2535  1
  Y  Y2  2  0.5000  0.0000  0.5000  1
  Si  Si3  4  0.0807  0.5278  0.8777  1
  Si  Si4  4  0.4897  0.1201  0.8773  1
]