data_[Sr6Ag18Te18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ag  1.9300  1.6000  1.0867
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [8.0027]
_cell_length_b [8.0027]
_cell_length_c [23.0910]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Sr(AgTe)3]
_chemical_formula_sum '[Sr6 Ag18 Te18]'
_cell_volume [1280.6801]
_cell_formula_units_Z [6]
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
[
  Sr  Sr0  6  0.0000  0.0000  0.3340  1.0
  Ag  Ag1  18  0.0031  0.6495  0.1260  1.0
  Te  Te2  18  0.0018  0.6817  0.9176  1.0
]