data_[Sr20Cd8Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Cd  1.6900  1.5500  1.0900
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.5466]
_cell_length_b [8.5466]
_cell_length_c [17.0357]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [Sr5Cd2Sn]
_chemical_formula_sum '[Sr20 Cd8 Sn4]'
_cell_volume [1244.3523]
_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  16  0.1763  0.3237  0.1488  1
  Sr  Sr1  4  0.0000  0.0000  0.0000  1
  Cd  Cd2  8  0.1185  0.3815  0.5000  1
  Sn  Sn3  4  0.0000  0.0000  0.2500  1
]