data_[Cs4Rb4Sn4Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [15.1692]
_cell_length_b [4.4323]
_cell_length_c [13.2185]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.9158]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [CsRbSnSe2]
_chemical_formula_sum '[Cs4 Rb4 Sn4 Se8]'
_cell_volume [854.6743]
_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  0.1575  0.5000  0.6366  1.0
  Rb  Rb1  4  0.1432  0.5000  0.0358  1.0
  Sn  Sn2  4  0.0433  0.0000  0.2137  1.0
  Se  Se3  4  0.0910  0.5000  0.3466  1.0
  Se  Se4  4  0.1360  0.0000  0.8373  1.0
]