data_[Cs2Sn2Se2F2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Sn  1.9600  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [10.9734]
_cell_length_b [4.0895]
_cell_length_c [5.9467]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.8622]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [CsSnSeF]
_chemical_formula_sum '[Cs2 Sn2 Se2 F2]'
_cell_volume [266.8326]
_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
[
  Cs  Cs0  2  0.4354  0.5000  0.7746  1
  Sn  Sn1  2  0.2192  0.0000  0.2766  1
  Se  Se2  2  0.0543  0.5000  0.2647  1
  F  F3  2  0.2455  0.0000  0.9232  1
]