data_[Rb4Si12Te8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Si  1.9000  1.1000  0.5400
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.2238]
_cell_length_b [4.1734]
_cell_length_c [10.0241]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.2707]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbSi3Te2]
_chemical_formula_sum '[Rb4 Si12 Te8]'
_cell_volume [785.8552]
_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
[
  Rb  Rb0  4  0.1201  0.0000  0.5746  1
  Si  Si1  4  0.0499  0.5000  0.0918  1
  Si  Si2  4  0.1130  0.0000  0.0808  1
  Si  Si3  4  0.2264  0.0000  0.0289  1
  Te  Te4  4  0.0088  0.5000  0.3109  1
  Te  Te5  4  0.2213  0.0000  0.2838  1
]