The crystal structure described by Tb3Pr is Magnesium-derived structured and crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to six equivalent Tb(1) and six equivalent Tb(2) atoms to form TbTb12 cuboctahedra that share corners with six equivalent Tb(1)Tb12 cuboctahedra, corners with twelve equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with six equivalent Tb(1)Tb12 cuboctahedra, edges with twelve equivalent Tb(2)Tb9Pr3 cuboctahedra, faces with two equivalent Pr(1)Tb6Pr6 cuboctahedra, faces with six equivalent Tb(1)Tb12 cuboctahedra, and faces with twelve 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 eighteen equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Tb(1)Tb12 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, faces with six equivalent Tb(1)Tb12 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with eight equivalent Tb(2)Tb9Pr3 cuboctahedra. Pr(1) is bonded to six equivalent Tb(2) and six equivalent Pr(1) atoms to form PrTb6Pr6 cuboctahedra that share corners with six equivalent Pr(1)Tb6Pr6 cuboctahedra, corners with twelve equivalent Tb(1)Tb12 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with twelve equivalent Tb(2)Tb9Pr3 cuboctahedra, faces with two equivalent Tb(1)Tb12 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with twelve equivalent Tb(2)Tb9Pr3 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb3Pr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.674
_cell_length_b   3.674
_cell_length_c   11.592
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   135.507
_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  0.333  0.667  0.500  1.0
  Tb  Tb1  1  1.000  0.000  0.256  1.0
  Tb  Tb2  1  1.000  0.000  0.744  1.0
  Pr  Pr3  1  0.333  0.667  0.000  1.0
[/CIF]
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The crystal structure described by Tb3Pr is Magnesium-derived structured and crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to six equivalent Tb(1) and six equivalent Tb(2) atoms to form TbTb12 cuboctahedra that share corners with six equivalent Tb(1)Tb12 cuboctahedra, corners with twelve equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with six equivalent Tb(1)Tb12 cuboctahedra, edges with twelve equivalent Tb(2)Tb9Pr3 cuboctahedra, faces with two equivalent Pr(1)Tb6Pr6 cuboctahedra, faces with six equivalent Tb(1)Tb12 cuboctahedra, and faces with twelve 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 eighteen equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Tb(1)Tb12 cuboctahedra, edges with six equivalent Tb(2)Tb9Pr3 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, faces with six equivalent Tb(1)Tb12 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with eight equivalent Tb(2)Tb9Pr3 cuboctahedra. Pr(1) is bonded to six equivalent Tb(2) and six equivalent Pr(1) atoms to form PrTb6Pr6 cuboctahedra that share corners with six equivalent Pr(1)Tb6Pr6 cuboctahedra, corners with twelve equivalent Tb(1)Tb12 cuboctahedra, edges with six equivalent Pr(1)Tb6Pr6 cuboctahedra, edges with twelve equivalent Tb(2)Tb9Pr3 cuboctahedra, faces with two equivalent Tb(1)Tb12 cuboctahedra, faces with six equivalent Pr(1)Tb6Pr6 cuboctahedra, and faces with twelve equivalent Tb(2)Tb9Pr3 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb3Pr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.674
_cell_length_b   3.674
_cell_length_c   11.592
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   135.507
_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  0.333  0.667  0.500  1.0
  Tb  Tb1  1  1.000  0.000  0.256  1.0
  Tb  Tb2  1  1.000  0.000  0.744  1.0
  Pr  Pr3  1  0.333  0.667  0.000  1.0
[/CIF]
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