data_[Tb4Ag6Bi2Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Ag  1.9300  1.6000  1.0867
  Bi  2.0200  1.6000  1.0350
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [17.8122]
_cell_length_b [4.1918]
_cell_length_c [8.1110]
_cell_angle_alpha [90.0000]
_cell_angle_beta [100.2896]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Tb2Ag3BiSe6]
_chemical_formula_sum '[Tb4 Ag6 Bi2 Se12]'
_cell_volume [595.8712]
_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  0.1683  0.0000  0.3246  1
  Ag  Ag1  4  0.1712  0.0000  0.8130  1
  Ag  Ag2  2  0.0000  0.5000  0.5000  1
  Bi  Bi3  2  0.0000  0.5000  0.0000  1
  Se  Se4  4  0.0008  0.0000  0.2590  1
  Se  Se5  4  0.1672  0.5000  0.5727  1
  Se  Se6  4  0.1679  0.5000  0.0768  1
]