The structure described by CeSe2 is Fluorite-like structured and crystallizes in the trigonal P3_221 space group. Ce(1) is bonded in a body-centered cubic geometry to eight equivalent Se(1) atoms. Se(1) is bonded to four equivalent Ce(1) atoms to form a mixture of edge and corner-sharing SeCe4 tetrahedra. is represented by the CIF file [CIF]
data_CeSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.871
_cell_length_b   4.871
_cell_length_c   12.066
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   247.954
_cell_formula_units_Z   3
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  1  0.657  0.000  0.000  1.0
  Ce  Ce1  1  0.343  0.343  0.333  1.0
  Ce  Ce2  1  1.000  0.657  0.667  1.0
  Se  Se3  1  0.325  0.334  0.084  1.0
  Se  Se4  1  0.009  0.675  0.417  1.0
  Se  Se5  1  0.666  0.991  0.751  1.0
  Se  Se6  1  0.991  0.666  0.916  1.0
  Se  Se7  1  0.334  0.325  0.583  1.0
  Se  Se8  1  0.675  0.009  0.249  1.0
[/CIF]
.
The structure described by CeSe2 is Fluorite-like structured and crystallizes in the trigonal P3_221 space group. Ce(1) is bonded in a body-centered cubic geometry to eight equivalent Se(1) atoms. Se(1) is bonded to four equivalent Ce(1) atoms to form a mixture of edge and corner-sharing SeCe4 tetrahedra. is represented by the CIF file [CIF]
data_CeSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.871
_cell_length_b   4.871
_cell_length_c   12.066
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   247.954
_cell_formula_units_Z   3
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  1  0.657  0.000  0.000  1.0
  Ce  Ce1  1  0.343  0.343  0.333  1.0
  Ce  Ce2  1  1.000  0.657  0.667  1.0
  Se  Se3  1  0.325  0.334  0.084  1.0
  Se  Se4  1  0.009  0.675  0.417  1.0
  Se  Se5  1  0.666  0.991  0.751  1.0
  Se  Se6  1  0.991  0.666  0.916  1.0
  Se  Se7  1  0.334  0.325  0.583  1.0
  Se  Se8  1  0.675  0.009  0.249  1.0
[/CIF]
.