data_[Ca4Tb8Te16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  Tb  1.1000  1.7500  0.9815
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [I-42d]
_cell_length_a [9.7919]
_cell_length_b [9.7919]
_cell_length_c [10.0015]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [122]
_chemical_formula_structural [Ca(TbTe2)2]
_chemical_formula_sum '[Ca4 Tb8 Te16]'
_cell_volume [958.9502]
_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
[
  Ca  Ca0  4  0.0000  0.0000  0.0000  1
  Tb  Tb1  8  0.0284  0.2500  0.6250  1
  Te  Te2  16  0.0226  0.1929  0.3241  1
]