The material structure described by Tb4(Pd3Al8)3 crystallizes in the triclinic P-1 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 17-coordinate geometry to one Pd(1); one Pd(3); one Pd(4); one Pd(5); two equivalent Pd(2); one Al(10); one Al(11); one Al(12); one Al(3); one Al(4); one Al(5); one Al(6); one Al(8); and three equivalent Al(1,7) atoms. In the second Tb site, Tb(2) is bonded in a 17-coordinate geometry to one Pd(1); one Pd(3); one Pd(4); one Pd(5); two equivalent Pd(2); one Al(10); one Al(11); one Al(12); one Al(4); one Al(5); one Al(6); one Al(8); one Al(9); and three equivalent Al(1,7) atoms. There are five inequivalent Pd sites. In the first Pd site, Pd(3) is bonded in a 8-coordinate geometry to one Tb(1), one Tb(2), one Al(10), one Al(2), one Al(4), one Al(5), one Al(6), one Al(9), and two equivalent Al(3) atoms. In the second Pd site, Pd(4) is bonded in a 8-coordinate geometry to one Tb(1), one Tb(2), one Al(12), one Al(3), one Al(4), one Al(5), one Al(6), one Al(9), and two equivalent Al(2) atoms. In the third Pd site, Pd(5) is bonded in a 8-coordinate geometry to two equivalent Tb(1); two equivalent Tb(2); two equivalent Al(11); two equivalent Al(8); and four equivalent Al(1,7) atoms. In the fourth Pd site, Pd(1) is bonded in a 8-coordinate geometry to one Tb(1), one Tb(2), one Al(11), one Al(2), one Al(3), one Al(4), one Al(5), one Al(6), and two equivalent Al(9) atoms. In the fifth Pd site, Pd(2) is bonded in a 8-coordinate geometry to two equivalent Tb(1); two equivalent Tb(2); one Al(10); one Al(12); two equivalent Al(8); and four equivalent Al(1,7) atoms. There are eleven inequivalent Al sites. In the first Al site, Al(1,7) is bonded in a 3-coordinate geometry to one Tb(2), two equivalent Tb(1), one Pd(5), two equivalent Pd(2), and one Al(8) atom. In the second Al site, Al(2) is bonded to one Pd(1), one Pd(3), and two equivalent Pd(4) atoms to form distorted AlPd4 tetrahedra that share corners with three equivalent Al(3)TbPd4 tetrahedra, corners with three equivalent Al(9)TbPd4 tetrahedra,  an edgeedge with one Al(2)Pd4 tetrahedra,  an edgeedge with one Al(3)TbPd4 tetrahedra, and  an edgeedge with one Al(9)TbPd4 tetrahedra. In the third Al site, Al(3) is bonded to one Tb(1), one Pd(1), one Pd(4), and two equivalent Pd(3) atoms to form distorted AlTbPd4 tetrahedra that share corners with three equivalent Al(2)Pd4 tetrahedra, corners with three equivalent Al(9)TbPd4 tetrahedra,  an edgeedge with one Al(2)Pd4 tetrahedra,  an edgeedge with one Al(3)TbPd4 tetrahedra, and  an edgeedge with one Al(9)TbPd4 tetrahedra. In the fourth Al site, Al(4) is bonded in a 3-coordinate geometry to one Tb(1), one Tb(2), one Pd(1), one Pd(3), and one Pd(4) atom. In the fifth Al site, Al(5) is bonded in a 3-coordinate geometry to one Tb(1), one Tb(2), one Pd(1), one Pd(3), and one Pd(4) atom. In the sixth Al site, Al(6) is bonded in a 3-coordinate geometry to one Tb(1), one Tb(2), one Pd(1), one Pd(3), and one Pd(4) atom. In the seventh Al site, Al(8) is bonded in a 10-coordinate geometry to one Tb(1); one Tb(2); one Pd(5); two equivalent Pd(2); one Al(10); one Al(12); one Al(8); and two equivalent Al(1,7) atoms. In the eighth Al site, Al(9) is bonded to one Tb(2), one Pd(3), one Pd(4), and two equivalent Pd(1) atoms to form distorted AlTbPd4 tetrahedra that share corners with three equivalent Al(2)Pd4 tetrahedra, corners with three equivalent Al(3)TbPd4 tetrahedra,  an edgeedge with one Al(2)Pd4 tetrahedra,  an edgeedge with one Al(3)TbPd4 tetrahedra, and  an edgeedge with one Al(9)TbPd4 tetrahedra. In the ninth Al site, Al(10) is bonded in a 2-coordinate geometry to one Tb(1), one Tb(2), one Pd(2), one Pd(3), and one Al(8) atom. In the tenth Al site, Al(11) is bonded in a 2-coordinate geometry to one Tb(1), one Tb(2), one Pd(1), and one Pd(5) atom. In the eleventh Al site, Al(12) is bonded in a 2-coordinate geometry to one Tb(1), one Tb(2), one Pd(2), one Pd(4), and one Al(8) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb4(Al8Pd3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.507
_cell_length_b   7.507
_cell_length_c   13.115
_cell_angle_alpha   84.557
_cell_angle_beta   100.943
_cell_angle_gamma   119.852
_symmetry_Int_Tables_number   1
_cell_volume   629.346
_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  0.438  0.832  0.809  1.0
  Tb  Tb1  1  0.562  0.168  0.191  1.0
  Tb  Tb2  1  0.768  0.502  0.809  1.0
  Tb  Tb3  1  0.232  0.498  0.191  1.0
  Al  Al4  1  0.481  0.166  0.945  1.0
  Al  Al5  1  0.519  0.834  0.055  1.0
  Al  Al6  1  0.021  0.167  0.561  1.0
  Al  Al7  1  0.979  0.833  0.439  1.0
  Al  Al8  1  0.354  0.833  0.560  1.0
  Al  Al9  1  0.646  0.167  0.440  1.0
  Al  Al10  1  0.618  0.835  0.330  1.0
  Al  Al11  1  0.382  0.165  0.670  1.0
  Al  Al12  1  0.056  0.493  0.670  1.0
  Al  Al13  1  0.944  0.507  0.330  1.0
  Al  Al14  1  0.731  0.841  0.668  1.0
  Al  Al15  1  0.269  0.159  0.332  1.0
  Al  Al16  1  0.148  0.499  0.945  1.0
  Al  Al17  1  0.852  0.501  0.055  1.0
  Al  Al18  1  0.819  0.833  0.956  1.0
  Al  Al19  1  0.181  0.167  0.044  1.0
  Al  Al20  1  0.313  0.500  0.440  1.0
  Al  Al21  1  0.687  0.500  0.560  1.0
  Al  Al22  1  0.102  0.836  0.184  1.0
  Al  Al23  1  0.898  0.164  0.816  1.0
  Al  Al24  1  0.307  0.369  0.815  1.0
  Al  Al25  1  0.693  0.631  0.185  1.0
  Al  Al26  1  0.103  0.959  0.816  1.0
  Al  Al27  1  0.897  0.041  0.184  1.0
  Pd  Pd28  1  0.387  0.507  0.638  1.0
  Pd  Pd29  1  0.613  0.493  0.362  1.0
  Pd  Pd30  1  0.172  0.828  0.000  1.0
  Pd  Pd31  1  0.828  0.172  1.000  1.0
  Pd  Pd32  1  0.295  0.833  0.362  1.0
  Pd  Pd33  1  0.705  0.167  0.638  1.0
  Pd  Pd34  1  0.046  0.825  0.638  1.0
  Pd  Pd35  1  0.954  0.175  0.362  1.0
  Pd  Pd36  1  0.500  0.500  0.000  1.0
[/CIF]
.
The material structure described by Tb4(Pd3Al8)3 crystallizes in the triclinic P-1 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 17-coordinate geometry to one Pd(1); one Pd(3); one Pd(4); one Pd(5); two equivalent Pd(2); one Al(10); one Al(11); one Al(12); one Al(3); one Al(4); one Al(5); one Al(6); one Al(8); and three equivalent Al(1,7) atoms. In the second Tb site, Tb(2) is bonded in a 17-coordinate geometry to one Pd(1); one Pd(3); one Pd(4); one Pd(5); two equivalent Pd(2); one Al(10); one Al(11); one Al(12); one Al(4); one Al(5); one Al(6); one Al(8); one Al(9); and three equivalent Al(1,7) atoms. There are five inequivalent Pd sites. In the first Pd site, Pd(3) is bonded in a 8-coordinate geometry to one Tb(1), one Tb(2), one Al(10), one Al(2), one Al(4), one Al(5), one Al(6), one Al(9), and two equivalent Al(3) atoms. In the second Pd site, Pd(4) is bonded in a 8-coordinate geometry to one Tb(1), one Tb(2), one Al(12), one Al(3), one Al(4), one Al(5), one Al(6), one Al(9), and two equivalent Al(2) atoms. In the third Pd site, Pd(5) is bonded in a 8-coordinate geometry to two equivalent Tb(1); two equivalent Tb(2); two equivalent Al(11); two equivalent Al(8); and four equivalent Al(1,7) atoms. In the fourth Pd site, Pd(1) is bonded in a 8-coordinate geometry to one Tb(1), one Tb(2), one Al(11), one Al(2), one Al(3), one Al(4), one Al(5), one Al(6), and two equivalent Al(9) atoms. In the fifth Pd site, Pd(2) is bonded in a 8-coordinate geometry to two equivalent Tb(1); two equivalent Tb(2); one Al(10); one Al(12); two equivalent Al(8); and four equivalent Al(1,7) atoms. There are eleven inequivalent Al sites. In the first Al site, Al(1,7) is bonded in a 3-coordinate geometry to one Tb(2), two equivalent Tb(1), one Pd(5), two equivalent Pd(2), and one Al(8) atom. In the second Al site, Al(2) is bonded to one Pd(1), one Pd(3), and two equivalent Pd(4) atoms to form distorted AlPd4 tetrahedra that share corners with three equivalent Al(3)TbPd4 tetrahedra, corners with three equivalent Al(9)TbPd4 tetrahedra,  an edgeedge with one Al(2)Pd4 tetrahedra,  an edgeedge with one Al(3)TbPd4 tetrahedra, and  an edgeedge with one Al(9)TbPd4 tetrahedra. In the third Al site, Al(3) is bonded to one Tb(1), one Pd(1), one Pd(4), and two equivalent Pd(3) atoms to form distorted AlTbPd4 tetrahedra that share corners with three equivalent Al(2)Pd4 tetrahedra, corners with three equivalent Al(9)TbPd4 tetrahedra,  an edgeedge with one Al(2)Pd4 tetrahedra,  an edgeedge with one Al(3)TbPd4 tetrahedra, and  an edgeedge with one Al(9)TbPd4 tetrahedra. In the fourth Al site, Al(4) is bonded in a 3-coordinate geometry to one Tb(1), one Tb(2), one Pd(1), one Pd(3), and one Pd(4) atom. In the fifth Al site, Al(5) is bonded in a 3-coordinate geometry to one Tb(1), one Tb(2), one Pd(1), one Pd(3), and one Pd(4) atom. In the sixth Al site, Al(6) is bonded in a 3-coordinate geometry to one Tb(1), one Tb(2), one Pd(1), one Pd(3), and one Pd(4) atom. In the seventh Al site, Al(8) is bonded in a 10-coordinate geometry to one Tb(1); one Tb(2); one Pd(5); two equivalent Pd(2); one Al(10); one Al(12); one Al(8); and two equivalent Al(1,7) atoms. In the eighth Al site, Al(9) is bonded to one Tb(2), one Pd(3), one Pd(4), and two equivalent Pd(1) atoms to form distorted AlTbPd4 tetrahedra that share corners with three equivalent Al(2)Pd4 tetrahedra, corners with three equivalent Al(3)TbPd4 tetrahedra,  an edgeedge with one Al(2)Pd4 tetrahedra,  an edgeedge with one Al(3)TbPd4 tetrahedra, and  an edgeedge with one Al(9)TbPd4 tetrahedra. In the ninth Al site, Al(10) is bonded in a 2-coordinate geometry to one Tb(1), one Tb(2), one Pd(2), one Pd(3), and one Al(8) atom. In the tenth Al site, Al(11) is bonded in a 2-coordinate geometry to one Tb(1), one Tb(2), one Pd(1), and one Pd(5) atom. In the eleventh Al site, Al(12) is bonded in a 2-coordinate geometry to one Tb(1), one Tb(2), one Pd(2), one Pd(4), and one Al(8) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb4(Al8Pd3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.507
_cell_length_b   7.507
_cell_length_c   13.115
_cell_angle_alpha   84.557
_cell_angle_beta   100.943
_cell_angle_gamma   119.852
_symmetry_Int_Tables_number   1
_cell_volume   629.346
_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  0.438  0.832  0.809  1.0
  Tb  Tb1  1  0.562  0.168  0.191  1.0
  Tb  Tb2  1  0.768  0.502  0.809  1.0
  Tb  Tb3  1  0.232  0.498  0.191  1.0
  Al  Al4  1  0.481  0.166  0.945  1.0
  Al  Al5  1  0.519  0.834  0.055  1.0
  Al  Al6  1  0.021  0.167  0.561  1.0
  Al  Al7  1  0.979  0.833  0.439  1.0
  Al  Al8  1  0.354  0.833  0.560  1.0
  Al  Al9  1  0.646  0.167  0.440  1.0
  Al  Al10  1  0.618  0.835  0.330  1.0
  Al  Al11  1  0.382  0.165  0.670  1.0
  Al  Al12  1  0.056  0.493  0.670  1.0
  Al  Al13  1  0.944  0.507  0.330  1.0
  Al  Al14  1  0.731  0.841  0.668  1.0
  Al  Al15  1  0.269  0.159  0.332  1.0
  Al  Al16  1  0.148  0.499  0.945  1.0
  Al  Al17  1  0.852  0.501  0.055  1.0
  Al  Al18  1  0.819  0.833  0.956  1.0
  Al  Al19  1  0.181  0.167  0.044  1.0
  Al  Al20  1  0.313  0.500  0.440  1.0
  Al  Al21  1  0.687  0.500  0.560  1.0
  Al  Al22  1  0.102  0.836  0.184  1.0
  Al  Al23  1  0.898  0.164  0.816  1.0
  Al  Al24  1  0.307  0.369  0.815  1.0
  Al  Al25  1  0.693  0.631  0.185  1.0
  Al  Al26  1  0.103  0.959  0.816  1.0
  Al  Al27  1  0.897  0.041  0.184  1.0
  Pd  Pd28  1  0.387  0.507  0.638  1.0
  Pd  Pd29  1  0.613  0.493  0.362  1.0
  Pd  Pd30  1  0.172  0.828  0.000  1.0
  Pd  Pd31  1  0.828  0.172  1.000  1.0
  Pd  Pd32  1  0.295  0.833  0.362  1.0
  Pd  Pd33  1  0.705  0.167  0.638  1.0
  Pd  Pd34  1  0.046  0.825  0.638  1.0
  Pd  Pd35  1  0.954  0.175  0.362  1.0
  Pd  Pd36  1  0.500  0.500  0.000  1.0
[/CIF]
.