data_[Cs4Pb8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Pb  2.3300  1.8000  1.1225
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [5.4689]
_cell_length_b [9.1998]
_cell_length_c [9.8903]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [CsPb2]
_chemical_formula_sum '[Cs4 Pb8]'
_cell_volume [497.6104]
_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
[
  Cs  Cs0  4  0.0000  0.2500  0.5760  1
  Pb  Pb1  8  0.0000  0.0777  0.1593  1
]