The material structure described by UCe3O8 is Fluorite-derived structured and crystallizes in the trigonal R-3m space group. U(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(3) atoms. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a body-centered cubic geometry to one O(1), one O(3), three equivalent O(2), and three equivalent O(4) atoms. In the second Ce site, Ce(2) is bonded in a body-centered cubic geometry to two equivalent O(4) and six equivalent O(1) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Ce(1) and three equivalent Ce(2) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(3)CeU3 tetrahedra, corners with three equivalent O(2)Ce3U tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with nine equivalent O(1)Ce4 tetrahedra, edges with three equivalent O(1)Ce4 tetrahedra, and edges with three equivalent O(4)Ce4 tetrahedra. In the second O site, O(2) is bonded to one U(1) and three equivalent Ce(1) atoms to form OCe3U tetrahedra that share corners with three equivalent O(1)Ce4 tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with three equivalent O(3)CeU3 tetrahedra, corners with seven equivalent O(2)Ce3U tetrahedra, edges with three equivalent O(4)Ce4 tetrahedra, and edges with three equivalent O(3)CeU3 tetrahedra. In the third O site, O(3) is bonded to three equivalent U(1) and one Ce(1) atom to form OCeU3 tetrahedra that share  a cornercorner with one O(1)Ce4 tetrahedra, corners with three equivalent O(2)Ce3U tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with nine equivalent O(3)CeU3 tetrahedra, edges with three equivalent O(2)Ce3U tetrahedra, and edges with three equivalent O(3)CeU3 tetrahedra. In the fourth O site, O(4) is bonded to one Ce(2) and three equivalent Ce(1) atoms to form OCe4 tetrahedra that share corners with three equivalent O(2)Ce3U tetrahedra, corners with three equivalent O(1)Ce4 tetrahedra, corners with three equivalent O(3)CeU3 tetrahedra, corners with seven equivalent O(4)Ce4 tetrahedra, edges with three equivalent O(2)Ce3U tetrahedra, and edges with three equivalent O(1)Ce4 tetrahedra. In the fifth O site, O(1) is bonded to one Ce(1) and three equivalent Ce(2) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(3)CeU3 tetrahedra, corners with three equivalent O(2)Ce3U tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with nine equivalent O(1)Ce4 tetrahedra, edges with three equivalent O(1)Ce4 tetrahedra, and edges with three equivalent O(4)Ce4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce3UO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.742
_cell_length_b   12.742
_cell_length_c   12.742
_cell_angle_alpha   17.508
_cell_angle_beta   17.508
_cell_angle_gamma   17.508
_symmetry_Int_Tables_number   1
_cell_volume   163.398
_cell_formula_units_Z   1
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  0.250  0.250  0.250  1.0
  Ce  Ce1  1  0.500  0.500  0.500  1.0
  Ce  Ce2  1  0.750  0.750  0.750  1.0
  U  U3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.812  0.812  0.812  1.0
  O  O5  1  0.057  0.057  0.057  1.0
  O  O6  1  0.316  0.316  0.316  1.0
  O  O7  1  0.565  0.565  0.565  1.0
  O  O8  1  0.435  0.435  0.435  1.0
  O  O9  1  0.684  0.684  0.684  1.0
  O  O10  1  0.943  0.943  0.943  1.0
  O  O11  1  0.188  0.188  0.188  1.0
[/CIF]
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The material structure described by UCe3O8 is Fluorite-derived structured and crystallizes in the trigonal R-3m space group. U(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(3) atoms. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a body-centered cubic geometry to one O(1), one O(3), three equivalent O(2), and three equivalent O(4) atoms. In the second Ce site, Ce(2) is bonded in a body-centered cubic geometry to two equivalent O(4) and six equivalent O(1) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Ce(1) and three equivalent Ce(2) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(3)CeU3 tetrahedra, corners with three equivalent O(2)Ce3U tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with nine equivalent O(1)Ce4 tetrahedra, edges with three equivalent O(1)Ce4 tetrahedra, and edges with three equivalent O(4)Ce4 tetrahedra. In the second O site, O(2) is bonded to one U(1) and three equivalent Ce(1) atoms to form OCe3U tetrahedra that share corners with three equivalent O(1)Ce4 tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with three equivalent O(3)CeU3 tetrahedra, corners with seven equivalent O(2)Ce3U tetrahedra, edges with three equivalent O(4)Ce4 tetrahedra, and edges with three equivalent O(3)CeU3 tetrahedra. In the third O site, O(3) is bonded to three equivalent U(1) and one Ce(1) atom to form OCeU3 tetrahedra that share  a cornercorner with one O(1)Ce4 tetrahedra, corners with three equivalent O(2)Ce3U tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with nine equivalent O(3)CeU3 tetrahedra, edges with three equivalent O(2)Ce3U tetrahedra, and edges with three equivalent O(3)CeU3 tetrahedra. In the fourth O site, O(4) is bonded to one Ce(2) and three equivalent Ce(1) atoms to form OCe4 tetrahedra that share corners with three equivalent O(2)Ce3U tetrahedra, corners with three equivalent O(1)Ce4 tetrahedra, corners with three equivalent O(3)CeU3 tetrahedra, corners with seven equivalent O(4)Ce4 tetrahedra, edges with three equivalent O(2)Ce3U tetrahedra, and edges with three equivalent O(1)Ce4 tetrahedra. In the fifth O site, O(1) is bonded to one Ce(1) and three equivalent Ce(2) atoms to form OCe4 tetrahedra that share  a cornercorner with one O(3)CeU3 tetrahedra, corners with three equivalent O(2)Ce3U tetrahedra, corners with three equivalent O(4)Ce4 tetrahedra, corners with nine equivalent O(1)Ce4 tetrahedra, edges with three equivalent O(1)Ce4 tetrahedra, and edges with three equivalent O(4)Ce4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ce3UO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.742
_cell_length_b   12.742
_cell_length_c   12.742
_cell_angle_alpha   17.508
_cell_angle_beta   17.508
_cell_angle_gamma   17.508
_symmetry_Int_Tables_number   1
_cell_volume   163.398
_cell_formula_units_Z   1
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  0.250  0.250  0.250  1.0
  Ce  Ce1  1  0.500  0.500  0.500  1.0
  Ce  Ce2  1  0.750  0.750  0.750  1.0
  U  U3  1  0.000  0.000  0.000  1.0
  O  O4  1  0.812  0.812  0.812  1.0
  O  O5  1  0.057  0.057  0.057  1.0
  O  O6  1  0.316  0.316  0.316  1.0
  O  O7  1  0.565  0.565  0.565  1.0
  O  O8  1  0.435  0.435  0.435  1.0
  O  O9  1  0.684  0.684  0.684  1.0
  O  O10  1  0.943  0.943  0.943  1.0
  O  O11  1  0.188  0.188  0.188  1.0
[/CIF]
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