The structure described by Pr4CeO10 is Fluorite-derived structured and crystallizes in the tetragonal I4/m space group. Pr(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. Ce(1) is bonded in a body-centered cubic geometry to eight equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded to three equivalent Pr(1) and one Ce(1) atom to form OCePr3 tetrahedra that share corners with four equivalent O(1)Pr4 tetrahedra, corners with twelve equivalent O(2)CePr3 tetrahedra,  an edgeedge with one O(1)Pr4 tetrahedra, and edges with five equivalent O(2)CePr3 tetrahedra. In the second O site, O(1) is bonded to four equivalent Pr(1) atoms to form OPr4 tetrahedra that share corners with sixteen equivalent O(2)CePr3 tetrahedra, edges with two equivalent O(1)Pr4 tetrahedra, and edges with four equivalent O(2)CePr3 tetrahedra. is represented by the CIF card [CIF]
data_CePr4O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.933
_cell_length_b   6.933
_cell_length_c   6.933
_cell_angle_alpha   99.751
_cell_angle_beta   99.751
_cell_angle_gamma   131.397
_symmetry_Int_Tables_number   1
_cell_volume   227.792
_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  0.000  0.000  0.000  1.0
  Pr  Pr1  1  0.400  0.201  0.600  1.0
  Pr  Pr2  1  0.799  0.400  0.199  1.0
  Pr  Pr3  1  0.201  0.600  0.801  1.0
  Pr  Pr4  1  0.600  0.799  0.400  1.0
  O  O5  1  0.750  0.250  0.500  1.0
  O  O6  1  0.145  0.435  0.097  1.0
  O  O7  1  0.565  0.662  0.711  1.0
  O  O8  1  0.951  0.855  0.289  1.0
  O  O9  1  0.338  0.049  0.903  1.0
  O  O10  1  0.855  0.565  0.903  1.0
  O  O11  1  0.250  0.750  0.500  1.0
  O  O12  1  0.662  0.951  0.097  1.0
  O  O13  1  0.049  0.145  0.711  1.0
  O  O14  1  0.435  0.338  0.289  1.0
[/CIF]
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The structure described by Pr4CeO10 is Fluorite-derived structured and crystallizes in the tetragonal I4/m space group. Pr(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. Ce(1) is bonded in a body-centered cubic geometry to eight equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(2) is bonded to three equivalent Pr(1) and one Ce(1) atom to form OCePr3 tetrahedra that share corners with four equivalent O(1)Pr4 tetrahedra, corners with twelve equivalent O(2)CePr3 tetrahedra,  an edgeedge with one O(1)Pr4 tetrahedra, and edges with five equivalent O(2)CePr3 tetrahedra. In the second O site, O(1) is bonded to four equivalent Pr(1) atoms to form OPr4 tetrahedra that share corners with sixteen equivalent O(2)CePr3 tetrahedra, edges with two equivalent O(1)Pr4 tetrahedra, and edges with four equivalent O(2)CePr3 tetrahedra. is represented by the CIF card [CIF]
data_CePr4O10
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.933
_cell_length_b   6.933
_cell_length_c   6.933
_cell_angle_alpha   99.751
_cell_angle_beta   99.751
_cell_angle_gamma   131.397
_symmetry_Int_Tables_number   1
_cell_volume   227.792
_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  0.000  0.000  0.000  1.0
  Pr  Pr1  1  0.400  0.201  0.600  1.0
  Pr  Pr2  1  0.799  0.400  0.199  1.0
  Pr  Pr3  1  0.201  0.600  0.801  1.0
  Pr  Pr4  1  0.600  0.799  0.400  1.0
  O  O5  1  0.750  0.250  0.500  1.0
  O  O6  1  0.145  0.435  0.097  1.0
  O  O7  1  0.565  0.662  0.711  1.0
  O  O8  1  0.951  0.855  0.289  1.0
  O  O9  1  0.338  0.049  0.903  1.0
  O  O10  1  0.855  0.565  0.903  1.0
  O  O11  1  0.250  0.750  0.500  1.0
  O  O12  1  0.662  0.951  0.097  1.0
  O  O13  1  0.049  0.145  0.711  1.0
  O  O14  1  0.435  0.338  0.289  1.0
[/CIF]
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