data_[Ce2Hf2Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Hf  1.3000  1.5500  0.8500
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [7.9398]
_cell_length_b [6.2669]
_cell_length_c [7.7297]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.8943]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [CeHfSe4]
_chemical_formula_sum '[Ce2 Hf2 Se8]'
_cell_volume [343.0127]
_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
[
  Ce  Ce0  2  0.5000  0.0000  0.5000  1
  Hf  Hf1  2  0.0000  0.0000  0.0000  1
  Se  Se2  4  0.1543  0.2422  0.3180  1
  Se  Se3  4  0.3060  0.7334  0.6518  1
]