data_[Sr8Tl4Cd8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Tl  1.6200  1.9000  1.3325
  Cd  1.6900  1.5500  1.0900
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.1887]
_cell_length_b [4.9873]
_cell_length_c [12.0960]
_cell_angle_alpha [90.0000]
_cell_angle_beta [115.6962]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr2TlCd2]
_chemical_formula_sum '[Sr8 Tl4 Cd8]'
_cell_volume [662.5854]
_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
[
  Sr  Sr0  4  0.0187  0.0000  0.3389  1
  Sr  Sr1  4  0.1919  0.0000  0.1092  1
  Tl  Tl2  4  0.2241  0.5000  0.3419  1
  Cd  Cd3  4  0.0221  0.5000  0.8889  1
  Cd  Cd4  4  0.1347  0.5000  0.5615  1
]