The crystal structure described by CeSe2 crystallizes in the tetragonal I-42d space group. Ce(1) is bonded to four equivalent Se(1) atoms to form corner-sharing CeSe4 tetrahedra. Se(1) is bonded in a water-like geometry to two equivalent Ce(1) atoms. is represented by the CIF card [CIF]
data_CeSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.392
_cell_length_b   7.392
_cell_length_c   7.392
_cell_angle_alpha   126.095
_cell_angle_beta   126.095
_cell_angle_gamma   79.732
_symmetry_Int_Tables_number   1
_cell_volume   254.776
_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  1  0.000  0.000  0.000  1.0
  Ce  Ce1  1  0.750  0.250  0.500  1.0
  Se  Se2  1  0.875  0.368  0.993  1.0
  Se  Se3  1  0.375  0.882  0.007  1.0
  Se  Se4  1  0.118  0.125  0.493  1.0
  Se  Se5  1  0.632  0.625  0.507  1.0
[/CIF]
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The crystal structure described by CeSe2 crystallizes in the tetragonal I-42d space group. Ce(1) is bonded to four equivalent Se(1) atoms to form corner-sharing CeSe4 tetrahedra. Se(1) is bonded in a water-like geometry to two equivalent Ce(1) atoms. is represented by the CIF card [CIF]
data_CeSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.392
_cell_length_b   7.392
_cell_length_c   7.392
_cell_angle_alpha   126.095
_cell_angle_beta   126.095
_cell_angle_gamma   79.732
_symmetry_Int_Tables_number   1
_cell_volume   254.776
_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  1  0.000  0.000  0.000  1.0
  Ce  Ce1  1  0.750  0.250  0.500  1.0
  Se  Se2  1  0.875  0.368  0.993  1.0
  Se  Se3  1  0.375  0.882  0.007  1.0
  Se  Se4  1  0.118  0.125  0.493  1.0
  Se  Se5  1  0.632  0.625  0.507  1.0
[/CIF]
.