data_[Tb3Tm3Ge3Se3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Tm  1.2500  1.7500  1.0950
  Ge  2.0100  1.2500  0.7700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [4.1051]
_cell_length_b [4.1051]
_cell_length_c [20.2432]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [TbTmGeSe]
_chemical_formula_sum '[Tb3 Tm3 Ge3 Se3]'
_cell_volume [295.4314]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.5514  1.0
  Tm  Tm1  3  0.0000  0.0000  0.0602  1.0
  Ge  Ge2  3  0.0000  0.0000  0.8044  1.0
  Se  Se3  3  0.0000  0.0000  0.3076  1.0
]