data_[Ce4Gd4Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Gd  1.2000  1.8000  1.0750
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.3445]
_cell_length_b [27.0661]
_cell_length_c [4.4554]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [CeGdSn2]
_chemical_formula_sum '[Ce4 Gd4 Sn8]'
_cell_volume [523.9048]
_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
[
  Ce  Ce0  4  0.0000  0.3416  0.2500  1
  Gd  Gd1  4  0.0000  0.0568  0.2500  1
  Sn  Sn2  4  0.0000  0.2535  0.7500  1
  Sn  Sn3  4  0.0000  0.4599  0.2500  1
]