data_[Sr4Ce4Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ce  1.1200  1.8500  1.0800
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [I4_1/amd]
_cell_length_a [6.1437]
_cell_length_b [6.1437]
_cell_length_c [12.2846]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [141]
_chemical_formula_structural [SrCeSe2]
_chemical_formula_sum '[Sr4 Ce4 Se8]'
_cell_volume [463.6804]
_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  4  0.0000  0.0000  0.5000  1.0
  Ce  Ce1  4  0.0000  0.0000  0.0000  1.0
  Se  Se2  8  0.0000  0.0000  0.2472  1.0
]