data_[Tb4Mg4Ge8]
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
  Ge  2.0100  1.2500  0.7700
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [8.0494]
_cell_length_b [3.8789]
_cell_length_c [10.9563]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [TbMgGe2]
_chemical_formula_sum '[Tb4 Mg4 Ge8]'
_cell_volume [342.0899]
_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  0.1210  0.2500  0.1481  1
  Mg  Mg1  4  0.0136  0.7500  0.3959  1
  Ge  Ge2  4  0.1662  0.2500  0.8043  1
  Ge  Ge3  4  0.2425  0.7500  0.9535  1
]