The structure described by Tb2Pr is alpha Samarium-derived structured and crystallizes in the trigonal R3m space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to three equivalent Tb(2), six equivalent Tb(1), and three equivalent Pr(1) atoms to form TbTb9Pr3 cuboctahedra that share corners with three equivalent Pr(1)Tb6Pr6 cuboctahedra, corners with six equivalent Tb(1)Tb9Pr3 cuboctahedra, corners with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Tb(1)Tb9Pr3 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with nine equivalent Pr(1)Tb6Pr6 cuboctahedra, faces with six equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with seven equivalent Tb(2)Tb9Pr3 cuboctahedra. In the second Tb site, Tb(2) is bonded to three equivalent Tb(1), six equivalent Tb(2), and three equivalent Pr(1) atoms to form TbTb9Pr3 cuboctahedra that share corners with six equivalent Tb(1)Tb9Pr3 cuboctahedra, corners with six equivalent Tb(2)Tb9Pr3 cuboctahedra, corners with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with six equivalent Tb(1)Tb9Pr3 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, faces with six equivalent Tb(2)Tb9Pr3 cuboctahedra, faces with seven equivalent Tb(1)Tb9Pr3 cuboctahedra, and faces with seven equivalent Pr(1)Tb6Pr6 cuboctahedra. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to three equivalent Tb(1), three equivalent Tb(2), and six equivalent Pr(1) atoms to form PrTb6Pr6 cuboctahedra that share corners with three equivalent Tb(1)Tb9Pr3 cuboctahedra, corners with six equivalent Tb(2)Tb9Pr3 cuboctahedra, corners with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with nine equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with seven equivalent Tb(2)Tb9Pr3 cuboctahedra. In the second Pr site, Pr(1) is bonded to three equivalent Tb(1), three equivalent Tb(2), and six equivalent Pr(1) atoms to form PrTb6Pr6 cuboctahedra that share corners with three equivalent Tb(1)Tb9Pr3 cuboctahedra, corners with six equivalent Tb(2)Tb9Pr3 cuboctahedra, corners with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with nine equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with seven equivalent Tb(2)Tb9Pr3 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb2Pr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.975
_cell_length_b   8.975
_cell_length_c   8.975
_cell_angle_alpha   23.509
_cell_angle_beta   23.509
_cell_angle_gamma   23.509
_symmetry_Int_Tables_number   1
_cell_volume   101.021
_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  0.224  0.224  0.224  1.0
  Tb  Tb1  1  0.998  0.998  0.998  1.0
  Pr  Pr2  1  0.778  0.778  0.778  1.0
[/CIF]
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The structure described by Tb2Pr is alpha Samarium-derived structured and crystallizes in the trigonal R3m space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to three equivalent Tb(2), six equivalent Tb(1), and three equivalent Pr(1) atoms to form TbTb9Pr3 cuboctahedra that share corners with three equivalent Pr(1)Tb6Pr6 cuboctahedra, corners with six equivalent Tb(1)Tb9Pr3 cuboctahedra, corners with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Tb(1)Tb9Pr3 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with nine equivalent Pr(1)Tb6Pr6 cuboctahedra, faces with six equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with seven equivalent Tb(2)Tb9Pr3 cuboctahedra. In the second Tb site, Tb(2) is bonded to three equivalent Tb(1), six equivalent Tb(2), and three equivalent Pr(1) atoms to form TbTb9Pr3 cuboctahedra that share corners with six equivalent Tb(1)Tb9Pr3 cuboctahedra, corners with six equivalent Tb(2)Tb9Pr3 cuboctahedra, corners with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with six equivalent Tb(1)Tb9Pr3 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, faces with six equivalent Tb(2)Tb9Pr3 cuboctahedra, faces with seven equivalent Tb(1)Tb9Pr3 cuboctahedra, and faces with seven equivalent Pr(1)Tb6Pr6 cuboctahedra. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded to three equivalent Tb(1), three equivalent Tb(2), and six equivalent Pr(1) atoms to form PrTb6Pr6 cuboctahedra that share corners with three equivalent Tb(1)Tb9Pr3 cuboctahedra, corners with six equivalent Tb(2)Tb9Pr3 cuboctahedra, corners with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with nine equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with seven equivalent Tb(2)Tb9Pr3 cuboctahedra. In the second Pr site, Pr(1) is bonded to three equivalent Tb(1), three equivalent Tb(2), and six equivalent Pr(1) atoms to form PrTb6Pr6 cuboctahedra that share corners with three equivalent Tb(1)Tb9Pr3 cuboctahedra, corners with six equivalent Tb(2)Tb9Pr3 cuboctahedra, corners with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with nine equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Tb(1)Tb9Pr3 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with seven equivalent Tb(2)Tb9Pr3 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb2Pr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.975
_cell_length_b   8.975
_cell_length_c   8.975
_cell_angle_alpha   23.509
_cell_angle_beta   23.509
_cell_angle_gamma   23.509
_symmetry_Int_Tables_number   1
_cell_volume   101.021
_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  0.224  0.224  0.224  1.0
  Tb  Tb1  1  0.998  0.998  0.998  1.0
  Pr  Pr2  1  0.778  0.778  0.778  1.0
[/CIF]
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