The compound described by YbTb3 is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. Yb(1) is bonded to four equivalent Tb(2) and eight equivalent Tb(1) atoms to form YbTb12 cuboctahedra that share corners with four equivalent Yb(1)Tb12 cuboctahedra, corners with eight equivalent Tb(2)Tb8Yb4 cuboctahedra, edges with eight equivalent Yb(1)Tb12 cuboctahedra, edges with sixteen equivalent Tb(1)Tb8Yb4 cuboctahedra, faces with four equivalent Yb(1)Tb12 cuboctahedra, faces with six equivalent Tb(2)Tb8Yb4 cuboctahedra, and faces with eight equivalent Tb(1)Tb8Yb4 cuboctahedra. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to four equivalent Yb(1), four equivalent Tb(1), and four equivalent Tb(2) atoms to form TbTb8Yb4 cuboctahedra that share corners with twelve equivalent Tb(1)Tb8Yb4 cuboctahedra, edges with eight equivalent Yb(1)Tb12 cuboctahedra, edges with eight equivalent Tb(1)Tb8Yb4 cuboctahedra, edges with eight equivalent Tb(2)Tb8Yb4 cuboctahedra, faces with four equivalent Yb(1)Tb12 cuboctahedra, faces with four equivalent Tb(2)Tb8Yb4 cuboctahedra, and faces with ten equivalent Tb(1)Tb8Yb4 cuboctahedra. In the second Tb site, Tb(2) is bonded to four equivalent Yb(1) and eight equivalent Tb(1) atoms to form TbTb8Yb4 cuboctahedra that share corners with four equivalent Tb(2)Tb8Yb4 cuboctahedra, corners with eight equivalent Yb(1)Tb12 cuboctahedra, edges with eight equivalent Tb(2)Tb8Yb4 cuboctahedra, edges with sixteen equivalent Tb(1)Tb8Yb4 cuboctahedra, faces with four equivalent Tb(2)Tb8Yb4 cuboctahedra, faces with six equivalent Yb(1)Tb12 cuboctahedra, and faces with eight equivalent Tb(1)Tb8Yb4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb3Yb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.247
_cell_length_b   6.247
_cell_length_c   6.247
_cell_angle_alpha   132.011
_cell_angle_beta   132.011
_cell_angle_gamma   70.212
_symmetry_Int_Tables_number   1
_cell_volume   131.908
_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  0.750  0.250  0.500  1.0
  Tb  Tb1  1  0.250  0.750  0.500  1.0
  Tb  Tb2  1  0.500  0.500  0.000  1.0
  Yb  Yb3  1  0.000  0.000  0.000  1.0
[/CIF]
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The compound described by YbTb3 is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. Yb(1) is bonded to four equivalent Tb(2) and eight equivalent Tb(1) atoms to form YbTb12 cuboctahedra that share corners with four equivalent Yb(1)Tb12 cuboctahedra, corners with eight equivalent Tb(2)Tb8Yb4 cuboctahedra, edges with eight equivalent Yb(1)Tb12 cuboctahedra, edges with sixteen equivalent Tb(1)Tb8Yb4 cuboctahedra, faces with four equivalent Yb(1)Tb12 cuboctahedra, faces with six equivalent Tb(2)Tb8Yb4 cuboctahedra, and faces with eight equivalent Tb(1)Tb8Yb4 cuboctahedra. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to four equivalent Yb(1), four equivalent Tb(1), and four equivalent Tb(2) atoms to form TbTb8Yb4 cuboctahedra that share corners with twelve equivalent Tb(1)Tb8Yb4 cuboctahedra, edges with eight equivalent Yb(1)Tb12 cuboctahedra, edges with eight equivalent Tb(1)Tb8Yb4 cuboctahedra, edges with eight equivalent Tb(2)Tb8Yb4 cuboctahedra, faces with four equivalent Yb(1)Tb12 cuboctahedra, faces with four equivalent Tb(2)Tb8Yb4 cuboctahedra, and faces with ten equivalent Tb(1)Tb8Yb4 cuboctahedra. In the second Tb site, Tb(2) is bonded to four equivalent Yb(1) and eight equivalent Tb(1) atoms to form TbTb8Yb4 cuboctahedra that share corners with four equivalent Tb(2)Tb8Yb4 cuboctahedra, corners with eight equivalent Yb(1)Tb12 cuboctahedra, edges with eight equivalent Tb(2)Tb8Yb4 cuboctahedra, edges with sixteen equivalent Tb(1)Tb8Yb4 cuboctahedra, faces with four equivalent Tb(2)Tb8Yb4 cuboctahedra, faces with six equivalent Yb(1)Tb12 cuboctahedra, and faces with eight equivalent Tb(1)Tb8Yb4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb3Yb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.247
_cell_length_b   6.247
_cell_length_c   6.247
_cell_angle_alpha   132.011
_cell_angle_beta   132.011
_cell_angle_gamma   70.212
_symmetry_Int_Tables_number   1
_cell_volume   131.908
_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  0.750  0.250  0.500  1.0
  Tb  Tb1  1  0.250  0.750  0.500  1.0
  Tb  Tb2  1  0.500  0.500  0.000  1.0
  Yb  Yb3  1  0.000  0.000  0.000  1.0
[/CIF]
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