data_[Rb8Si4Te16Pb4]
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
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [8.5640]
_cell_length_b [10.2319]
_cell_length_c [13.4133]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Rb2SiTe4Pb]
_chemical_formula_sum '[Rb8 Si4 Te16 Pb4]'
_cell_volume [1175.3524]
_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  0.0000  0.0000  0.5000  1
  Rb  Rb1  4  0.2500  0.2500  0.2500  1
  Si  Si2  4  0.2500  0.2500  0.7500  1
  Te  Te3  8  0.0000  0.0615  0.7553  1
  Te  Te4  8  0.2374  0.2500  0.9546  1
  Pb  Pb5  4  0.0000  0.0000  0.0000  1
]