data_[Sr2Sn2Pb2I12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Sn  1.9600  1.4500  0.8300
  Pb  2.3300  1.8000  1.1225
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P4_2nm]
_cell_length_a [7.6849]
_cell_length_b [7.6849]
_cell_length_c [14.6312]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [102]
_chemical_formula_structural [SrSnPbI6]
_chemical_formula_sum '[Sr2 Sn2 Pb2 I12]'
_cell_volume [864.0781]
_cell_formula_units_Z [2]
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  2  0.0000  0.0000  0.3331  1.0
  Sn  Sn1  2  0.0000  0.0000  0.6659  1.0
  Pb  Pb2  2  0.0000  0.0000  0.0011  1.0
  I  I3  4  0.1949  0.8051  0.8311  1.0
  I  I4  4  0.1982  0.8018  0.5046  1.0
  I  I5  4  0.2027  0.7973  0.1643  1.0
]