The structure described by TbCeO4 is Fluorite-derived structured and crystallizes in the monoclinic P2_1/m space group. Tb(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. Ce(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Tb(1) and one Ce(1) atom to form OTb3Ce tetrahedra that share corners with eight equivalent O(1)Tb3Ce tetrahedra, corners with eight equivalent O(2)TbCe3 tetrahedra, edges with two equivalent O(2)TbCe3 tetrahedra, and edges with four equivalent O(1)Tb3Ce tetrahedra. In the second O site, O(2) is bonded to one Tb(1) and three equivalent Ce(1) atoms to form OTbCe3 tetrahedra that share corners with eight equivalent O(1)Tb3Ce tetrahedra, corners with eight equivalent O(2)TbCe3 tetrahedra, edges with two equivalent O(1)Tb3Ce tetrahedra, and edges with four equivalent O(2)TbCe3 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_TbCeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.604
_cell_length_b   3.813
_cell_length_c   7.637
_cell_angle_alpha   85.451
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   162.670
_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
  Tb  Tb0  1  0.250  0.226  0.873  1.0
  Tb  Tb1  1  0.750  0.774  0.127  1.0
  Ce  Ce2  1  0.750  0.733  0.625  1.0
  Ce  Ce3  1  0.250  0.267  0.375  1.0
  O  O4  1  0.994  0.722  0.882  1.0
  O  O5  1  0.506  0.722  0.882  1.0
  O  O6  1  0.498  0.236  0.625  1.0
  O  O7  1  0.002  0.236  0.625  1.0
  O  O8  1  0.502  0.764  0.375  1.0
  O  O9  1  0.998  0.764  0.375  1.0
  O  O10  1  0.006  0.278  0.118  1.0
  O  O11  1  0.494  0.278  0.118  1.0
[/CIF]
.
The structure described by TbCeO4 is Fluorite-derived structured and crystallizes in the monoclinic P2_1/m space group. Tb(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. Ce(1) is bonded in a body-centered cubic geometry to two equivalent O(1) and six equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Tb(1) and one Ce(1) atom to form OTb3Ce tetrahedra that share corners with eight equivalent O(1)Tb3Ce tetrahedra, corners with eight equivalent O(2)TbCe3 tetrahedra, edges with two equivalent O(2)TbCe3 tetrahedra, and edges with four equivalent O(1)Tb3Ce tetrahedra. In the second O site, O(2) is bonded to one Tb(1) and three equivalent Ce(1) atoms to form OTbCe3 tetrahedra that share corners with eight equivalent O(1)Tb3Ce tetrahedra, corners with eight equivalent O(2)TbCe3 tetrahedra, edges with two equivalent O(1)Tb3Ce tetrahedra, and edges with four equivalent O(2)TbCe3 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_TbCeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.604
_cell_length_b   3.813
_cell_length_c   7.637
_cell_angle_alpha   85.451
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   162.670
_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
  Tb  Tb0  1  0.250  0.226  0.873  1.0
  Tb  Tb1  1  0.750  0.774  0.127  1.0
  Ce  Ce2  1  0.750  0.733  0.625  1.0
  Ce  Ce3  1  0.250  0.267  0.375  1.0
  O  O4  1  0.994  0.722  0.882  1.0
  O  O5  1  0.506  0.722  0.882  1.0
  O  O6  1  0.498  0.236  0.625  1.0
  O  O7  1  0.002  0.236  0.625  1.0
  O  O8  1  0.502  0.764  0.375  1.0
  O  O9  1  0.998  0.764  0.375  1.0
  O  O10  1  0.006  0.278  0.118  1.0
  O  O11  1  0.494  0.278  0.118  1.0
[/CIF]
.