data_[Sn12Bi3Te15]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sn  1.9600  1.4500  0.8300
  Bi  2.0200  1.6000  1.0350
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [4.6100]
_cell_length_b [4.6100]
_cell_length_c [53.9569]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Sn4BiTe5]
_chemical_formula_sum '[Sn12 Bi3 Te15]'
_cell_volume [993.0760]
_cell_formula_units_Z [3]
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
[
  Sn  Sn0  6  0.0000  0.0000  0.0992  1.0
  Sn  Sn1  6  0.0000  0.0000  0.3001  1.0
  Bi  Bi2  3  -0.0000  -0.0000  0.5000  1.0
  Te  Te3  6  0.0000  0.0000  0.1998  1.0
  Te  Te4  6  0.0000  0.0000  0.4005  1.0
  Te  Te5  3  0.0000  0.0000  0.0000  1.0
]