The structure described by TbCe3 is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded to four equivalent Ce(2) and eight equivalent Ce(1) atoms to form TbCe12 cuboctahedra that share corners with four equivalent Tb(1)Ce12 cuboctahedra, corners with eight equivalent Ce(2)Tb4Ce8 cuboctahedra, edges with eight equivalent Tb(1)Ce12 cuboctahedra, edges with sixteen equivalent Ce(1)Tb4Ce8 cuboctahedra, faces with four equivalent Tb(1)Ce12 cuboctahedra, faces with six equivalent Ce(2)Tb4Ce8 cuboctahedra, and faces with eight equivalent Ce(1)Tb4Ce8 cuboctahedra. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to four equivalent Tb(1), four equivalent Ce(1), and four equivalent Ce(2) atoms to form CeTb4Ce8 cuboctahedra that share corners with twelve equivalent Ce(1)Tb4Ce8 cuboctahedra, edges with eight equivalent Tb(1)Ce12 cuboctahedra, edges with eight equivalent Ce(1)Tb4Ce8 cuboctahedra, edges with eight equivalent Ce(2)Tb4Ce8 cuboctahedra, faces with four equivalent Tb(1)Ce12 cuboctahedra, faces with four equivalent Ce(2)Tb4Ce8 cuboctahedra, and faces with ten equivalent Ce(1)Tb4Ce8 cuboctahedra. In the second Ce site, Ce(2) is bonded to four equivalent Tb(1) and eight equivalent Ce(1) atoms to form CeTb4Ce8 cuboctahedra that share corners with four equivalent Ce(2)Tb4Ce8 cuboctahedra, corners with eight equivalent Tb(1)Ce12 cuboctahedra, edges with eight equivalent Ce(2)Tb4Ce8 cuboctahedra, edges with sixteen equivalent Ce(1)Tb4Ce8 cuboctahedra, faces with four equivalent Ce(2)Tb4Ce8 cuboctahedra, faces with six equivalent Tb(1)Ce12 cuboctahedra, and faces with eight equivalent Ce(1)Tb4Ce8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_TbCe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.938
_cell_length_b   5.938
_cell_length_c   5.938
_cell_angle_alpha   132.412
_cell_angle_beta   132.412
_cell_angle_gamma   69.579
_symmetry_Int_Tables_number   1
_cell_volume   111.940
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Ce  Ce1  1  0.750  0.250  0.500  1.0
  Ce  Ce2  1  0.250  0.750  0.500  1.0
  Ce  Ce3  1  0.500  0.500  0.000  1.0
[/CIF]
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The structure described by TbCe3 is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Tb(1) is bonded to four equivalent Ce(2) and eight equivalent Ce(1) atoms to form TbCe12 cuboctahedra that share corners with four equivalent Tb(1)Ce12 cuboctahedra, corners with eight equivalent Ce(2)Tb4Ce8 cuboctahedra, edges with eight equivalent Tb(1)Ce12 cuboctahedra, edges with sixteen equivalent Ce(1)Tb4Ce8 cuboctahedra, faces with four equivalent Tb(1)Ce12 cuboctahedra, faces with six equivalent Ce(2)Tb4Ce8 cuboctahedra, and faces with eight equivalent Ce(1)Tb4Ce8 cuboctahedra. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded to four equivalent Tb(1), four equivalent Ce(1), and four equivalent Ce(2) atoms to form CeTb4Ce8 cuboctahedra that share corners with twelve equivalent Ce(1)Tb4Ce8 cuboctahedra, edges with eight equivalent Tb(1)Ce12 cuboctahedra, edges with eight equivalent Ce(1)Tb4Ce8 cuboctahedra, edges with eight equivalent Ce(2)Tb4Ce8 cuboctahedra, faces with four equivalent Tb(1)Ce12 cuboctahedra, faces with four equivalent Ce(2)Tb4Ce8 cuboctahedra, and faces with ten equivalent Ce(1)Tb4Ce8 cuboctahedra. In the second Ce site, Ce(2) is bonded to four equivalent Tb(1) and eight equivalent Ce(1) atoms to form CeTb4Ce8 cuboctahedra that share corners with four equivalent Ce(2)Tb4Ce8 cuboctahedra, corners with eight equivalent Tb(1)Ce12 cuboctahedra, edges with eight equivalent Ce(2)Tb4Ce8 cuboctahedra, edges with sixteen equivalent Ce(1)Tb4Ce8 cuboctahedra, faces with four equivalent Ce(2)Tb4Ce8 cuboctahedra, faces with six equivalent Tb(1)Ce12 cuboctahedra, and faces with eight equivalent Ce(1)Tb4Ce8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_TbCe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.938
_cell_length_b   5.938
_cell_length_c   5.938
_cell_angle_alpha   132.412
_cell_angle_beta   132.412
_cell_angle_gamma   69.579
_symmetry_Int_Tables_number   1
_cell_volume   111.940
_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
  Tb  Tb0  1  0.000  0.000  0.000  1.0
  Ce  Ce1  1  0.750  0.250  0.500  1.0
  Ce  Ce2  1  0.250  0.750  0.500  1.0
  Ce  Ce3  1  0.500  0.500  0.000  1.0
[/CIF]
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