The material structure described by Tb6Pd3Ga19 crystallizes in the monoclinic Cm space group. There are six inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one Ga(1), one Ga(3), one Ga(5), one Ga(7), two equivalent Ga(11), two equivalent Ga(13), two equivalent Ga(15), two equivalent Ga(19), and two equivalent Ga(9) atoms to form distorted TbGa14 cuboctahedra that share corners with two equivalent Ga(17)Tb4Ga6Pd2 cuboctahedra,  an edgeedge with one Ga(18)Tb4Ga4Pd4 cuboctahedra,  a faceface with one Ga(17)Tb4Ga6Pd2 cuboctahedra, and faces with two equivalent Tb(1)Ga14 cuboctahedra. In the second Tb site, Tb(2) is bonded to one Ga(2), one Ga(4), one Ga(6), one Ga(8), two equivalent Ga(10), two equivalent Ga(12), two equivalent Ga(14), and two equivalent Ga(16) atoms to form distorted TbGa12 cuboctahedra that share  an edgeedge with one Ga(18)Tb4Ga4Pd4 cuboctahedra,  an edgeedge with one Ga(17)Tb4Ga6Pd2 cuboctahedra, and faces with two equivalent Tb(2)Ga12 cuboctahedra. In the third Tb site, Tb(3) is bonded in a 14-coordinate geometry to one Pd(1), one Pd(2), one Ga(1), one Ga(5), two equivalent Ga(11), two equivalent Ga(15), two equivalent Ga(18), two equivalent Ga(4), and two equivalent Ga(7) atoms. In the fourth Tb site, Tb(4) is bonded in a 12-coordinate geometry to one Pd(3), one Ga(19), one Ga(2), one Ga(6), two equivalent Ga(12), two equivalent Ga(16), two equivalent Ga(17), two equivalent Ga(3), and two equivalent Ga(8) atoms. In the fifth Tb site, Tb(5) is bonded in a 12-coordinate geometry to one Pd(3), one Ga(19), one Ga(3), one Ga(7), two equivalent Ga(13), two equivalent Ga(17), two equivalent Ga(2), two equivalent Ga(5), and two equivalent Ga(9) atoms. In the sixth Tb site, Tb(6) is bonded in a 14-coordinate geometry to one Pd(1), one Pd(2), one Ga(4), one Ga(8), two equivalent Ga(1), two equivalent Ga(10), two equivalent Ga(14), two equivalent Ga(18), and two equivalent Ga(6) atoms. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 10-coordinate geometry to one Tb(3), one Tb(6), one Ga(10), one Ga(16), two equivalent Ga(18), two equivalent Ga(4), and two equivalent Ga(6) atoms. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to one Tb(3), one Tb(6), one Ga(11), one Ga(13), two equivalent Ga(1), two equivalent Ga(18), and two equivalent Ga(7) atoms. In the third Pd site, Pd(3) is bonded in a 10-coordinate geometry to one Tb(4), one Tb(5), one Ga(12), one Ga(14), two equivalent Ga(17), two equivalent Ga(2), and two equivalent Ga(8) atoms. There are nineteen inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(3), two equivalent Tb(6), two equivalent Pd(2), one Ga(10), one Ga(18), and two equivalent Ga(11) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(4), two equivalent Tb(5), two equivalent Pd(3), one Ga(17), one Ga(9), and two equivalent Ga(12) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(5), two equivalent Tb(4), one Ga(12), one Ga(17), two equivalent Ga(19), and two equivalent Ga(9) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(6), two equivalent Tb(3), two equivalent Pd(1), one Ga(11), one Ga(18), and two equivalent Ga(10) atoms. In the fifth Ga site, Ga(5) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(3), two equivalent Tb(5), one Ga(13), one Ga(17), two equivalent Ga(15), and two equivalent Ga(19) atoms. In the sixth Ga site, Ga(6) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(4), two equivalent Tb(6), two equivalent Pd(1), one Ga(14), one Ga(18), and two equivalent Ga(16) atoms. In the seventh Ga site, Ga(7) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(5), two equivalent Tb(3), two equivalent Pd(2), one Ga(15), one Ga(18), and two equivalent Ga(13) atoms. In the eighth Ga site, Ga(8) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(6), two equivalent Tb(4), two equivalent Pd(3), one Ga(16), one Ga(17), and two equivalent Ga(14) atoms. In the ninth Ga site, Ga(9) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(5), one Ga(13), one Ga(19), one Ga(2), and two equivalent Ga(3) atoms. In the tenth Ga site, Ga(10) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(6), one Pd(1), one Ga(1), one Ga(14), and two equivalent Ga(4) atoms. In the eleventh Ga site, Ga(11) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), one Pd(2), one Ga(15), one Ga(4), and two equivalent Ga(1) atoms. In the twelfth Ga site, Ga(12) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(4), one Pd(3), one Ga(16), one Ga(3), and two equivalent Ga(2) atoms. In the thirteenth Ga site, Ga(13) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(5), one Pd(2), one Ga(5), one Ga(9), and two equivalent Ga(7) atoms. In the fourteenth Ga site, Ga(14) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(6), one Pd(3), one Ga(10), one Ga(6), and two equivalent Ga(8) atoms. In the fifteenth Ga site, Ga(15) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), one Ga(11), one Ga(19), one Ga(7), and two equivalent Ga(5) atoms. In the sixteenth Ga site, Ga(16) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(4), one Pd(1), one Ga(12), one Ga(8), and two equivalent Ga(6) atoms. In the seventeenth Ga site, Ga(17) is bonded to two equivalent Tb(4), two equivalent Tb(5), two equivalent Pd(3), one Ga(2), one Ga(3), one Ga(5), one Ga(8), and two equivalent Ga(19) atoms to form distorted GaTb4Ga6Pd2 cuboctahedra that share corners with two equivalent Tb(1)Ga14 cuboctahedra,  an edgeedge with one Tb(2)Ga12 cuboctahedra,  a faceface with one Tb(1)Ga14 cuboctahedra, and faces with two equivalent Ga(17)Tb4Ga6Pd2 cuboctahedra. In the eighteenth Ga site, Ga(18) is bonded to two equivalent Tb(3), two equivalent Tb(6), two equivalent Pd(1), two equivalent Pd(2), one Ga(1), one Ga(4), one Ga(6), and one Ga(7) atom to form GaTb4Ga4Pd4 cuboctahedra that share  an edgeedge with one Tb(2)Ga12 cuboctahedra,  an edgeedge with one Tb(1)Ga14 cuboctahedra, and faces with two equivalent Ga(18)Tb4Ga4Pd4 cuboctahedra. In the nineteenth Ga site, Ga(19) is bonded in a 12-coordinate geometry to one Tb(4), one Tb(5), two equivalent Tb(1), one Ga(15), one Ga(9), two equivalent Ga(17), two equivalent Ga(3), and two equivalent Ga(5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb6Ga19Pd3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.264
_cell_length_b   8.192
_cell_length_c   16.194
_cell_angle_alpha   106.797
_cell_angle_beta   82.435
_cell_angle_gamma   105.085
_symmetry_Int_Tables_number   1
_cell_volume   521.880
_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  0.251  0.750  0.248  1.0
  Tb  Tb1  1  0.749  0.250  0.751  1.0
  Tb  Tb2  1  0.399  0.205  0.406  1.0
  Tb  Tb3  1  0.908  0.721  0.905  1.0
  Tb  Tb4  1  0.092  0.279  0.095  1.0
  Tb  Tb5  1  0.598  0.793  0.596  1.0
  Ga  Ga6  1  0.176  0.812  0.459  1.0
  Ga  Ga7  1  0.681  0.317  0.955  1.0
  Ga  Ga8  1  0.318  0.677  0.041  1.0
  Ga  Ga9  1  0.823  0.188  0.543  1.0
  Ga  Ga10  1  0.458  0.099  0.183  1.0
  Ga  Ga11  1  0.960  0.596  0.677  1.0
  Ga  Ga12  1  0.040  0.405  0.325  1.0
  Ga  Ga13  1  0.545  0.908  0.819  1.0
  Ga  Ga14  1  0.731  0.571  0.108  1.0
  Ga  Ga15  1  0.238  0.082  0.606  1.0
  Ga  Ga16  1  0.760  0.917  0.398  1.0
  Ga  Ga17  1  0.267  0.424  0.891  1.0
  Ga  Ga18  1  0.605  0.449  0.240  1.0
  Ga  Ga19  1  0.107  0.948  0.733  1.0
  Ga  Ga20  1  0.890  0.049  0.268  1.0
  Ga  Ga21  1  0.395  0.552  0.762  1.0
  Ga  Ga22  1  0.506  0.007  0.994  1.0
  Ga  Ga23  1  1.000  0.500  0.501  1.0
  Ga  Ga24  1  0.898  0.897  0.101  1.0
  Pd  Pd25  1  0.404  0.405  0.597  1.0
  Pd  Pd26  1  0.596  0.595  0.403  1.0
  Pd  Pd27  1  0.103  0.104  0.897  1.0
[/CIF]
.
The material structure described by Tb6Pd3Ga19 crystallizes in the monoclinic Cm space group. There are six inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one Ga(1), one Ga(3), one Ga(5), one Ga(7), two equivalent Ga(11), two equivalent Ga(13), two equivalent Ga(15), two equivalent Ga(19), and two equivalent Ga(9) atoms to form distorted TbGa14 cuboctahedra that share corners with two equivalent Ga(17)Tb4Ga6Pd2 cuboctahedra,  an edgeedge with one Ga(18)Tb4Ga4Pd4 cuboctahedra,  a faceface with one Ga(17)Tb4Ga6Pd2 cuboctahedra, and faces with two equivalent Tb(1)Ga14 cuboctahedra. In the second Tb site, Tb(2) is bonded to one Ga(2), one Ga(4), one Ga(6), one Ga(8), two equivalent Ga(10), two equivalent Ga(12), two equivalent Ga(14), and two equivalent Ga(16) atoms to form distorted TbGa12 cuboctahedra that share  an edgeedge with one Ga(18)Tb4Ga4Pd4 cuboctahedra,  an edgeedge with one Ga(17)Tb4Ga6Pd2 cuboctahedra, and faces with two equivalent Tb(2)Ga12 cuboctahedra. In the third Tb site, Tb(3) is bonded in a 14-coordinate geometry to one Pd(1), one Pd(2), one Ga(1), one Ga(5), two equivalent Ga(11), two equivalent Ga(15), two equivalent Ga(18), two equivalent Ga(4), and two equivalent Ga(7) atoms. In the fourth Tb site, Tb(4) is bonded in a 12-coordinate geometry to one Pd(3), one Ga(19), one Ga(2), one Ga(6), two equivalent Ga(12), two equivalent Ga(16), two equivalent Ga(17), two equivalent Ga(3), and two equivalent Ga(8) atoms. In the fifth Tb site, Tb(5) is bonded in a 12-coordinate geometry to one Pd(3), one Ga(19), one Ga(3), one Ga(7), two equivalent Ga(13), two equivalent Ga(17), two equivalent Ga(2), two equivalent Ga(5), and two equivalent Ga(9) atoms. In the sixth Tb site, Tb(6) is bonded in a 14-coordinate geometry to one Pd(1), one Pd(2), one Ga(4), one Ga(8), two equivalent Ga(1), two equivalent Ga(10), two equivalent Ga(14), two equivalent Ga(18), and two equivalent Ga(6) atoms. There are three inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 10-coordinate geometry to one Tb(3), one Tb(6), one Ga(10), one Ga(16), two equivalent Ga(18), two equivalent Ga(4), and two equivalent Ga(6) atoms. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to one Tb(3), one Tb(6), one Ga(11), one Ga(13), two equivalent Ga(1), two equivalent Ga(18), and two equivalent Ga(7) atoms. In the third Pd site, Pd(3) is bonded in a 10-coordinate geometry to one Tb(4), one Tb(5), one Ga(12), one Ga(14), two equivalent Ga(17), two equivalent Ga(2), and two equivalent Ga(8) atoms. There are nineteen inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(3), two equivalent Tb(6), two equivalent Pd(2), one Ga(10), one Ga(18), and two equivalent Ga(11) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(4), two equivalent Tb(5), two equivalent Pd(3), one Ga(17), one Ga(9), and two equivalent Ga(12) atoms. In the third Ga site, Ga(3) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(5), two equivalent Tb(4), one Ga(12), one Ga(17), two equivalent Ga(19), and two equivalent Ga(9) atoms. In the fourth Ga site, Ga(4) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(6), two equivalent Tb(3), two equivalent Pd(1), one Ga(11), one Ga(18), and two equivalent Ga(10) atoms. In the fifth Ga site, Ga(5) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(3), two equivalent Tb(5), one Ga(13), one Ga(17), two equivalent Ga(15), and two equivalent Ga(19) atoms. In the sixth Ga site, Ga(6) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(4), two equivalent Tb(6), two equivalent Pd(1), one Ga(14), one Ga(18), and two equivalent Ga(16) atoms. In the seventh Ga site, Ga(7) is bonded in a 10-coordinate geometry to one Tb(1), one Tb(5), two equivalent Tb(3), two equivalent Pd(2), one Ga(15), one Ga(18), and two equivalent Ga(13) atoms. In the eighth Ga site, Ga(8) is bonded in a 10-coordinate geometry to one Tb(2), one Tb(6), two equivalent Tb(4), two equivalent Pd(3), one Ga(16), one Ga(17), and two equivalent Ga(14) atoms. In the ninth Ga site, Ga(9) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(5), one Ga(13), one Ga(19), one Ga(2), and two equivalent Ga(3) atoms. In the tenth Ga site, Ga(10) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(6), one Pd(1), one Ga(1), one Ga(14), and two equivalent Ga(4) atoms. In the eleventh Ga site, Ga(11) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), one Pd(2), one Ga(15), one Ga(4), and two equivalent Ga(1) atoms. In the twelfth Ga site, Ga(12) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(4), one Pd(3), one Ga(16), one Ga(3), and two equivalent Ga(2) atoms. In the thirteenth Ga site, Ga(13) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(5), one Pd(2), one Ga(5), one Ga(9), and two equivalent Ga(7) atoms. In the fourteenth Ga site, Ga(14) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(6), one Pd(3), one Ga(10), one Ga(6), and two equivalent Ga(8) atoms. In the fifteenth Ga site, Ga(15) is bonded in a 9-coordinate geometry to two equivalent Tb(1), two equivalent Tb(3), one Ga(11), one Ga(19), one Ga(7), and two equivalent Ga(5) atoms. In the sixteenth Ga site, Ga(16) is bonded in a 9-coordinate geometry to two equivalent Tb(2), two equivalent Tb(4), one Pd(1), one Ga(12), one Ga(8), and two equivalent Ga(6) atoms. In the seventeenth Ga site, Ga(17) is bonded to two equivalent Tb(4), two equivalent Tb(5), two equivalent Pd(3), one Ga(2), one Ga(3), one Ga(5), one Ga(8), and two equivalent Ga(19) atoms to form distorted GaTb4Ga6Pd2 cuboctahedra that share corners with two equivalent Tb(1)Ga14 cuboctahedra,  an edgeedge with one Tb(2)Ga12 cuboctahedra,  a faceface with one Tb(1)Ga14 cuboctahedra, and faces with two equivalent Ga(17)Tb4Ga6Pd2 cuboctahedra. In the eighteenth Ga site, Ga(18) is bonded to two equivalent Tb(3), two equivalent Tb(6), two equivalent Pd(1), two equivalent Pd(2), one Ga(1), one Ga(4), one Ga(6), and one Ga(7) atom to form GaTb4Ga4Pd4 cuboctahedra that share  an edgeedge with one Tb(2)Ga12 cuboctahedra,  an edgeedge with one Tb(1)Ga14 cuboctahedra, and faces with two equivalent Ga(18)Tb4Ga4Pd4 cuboctahedra. In the nineteenth Ga site, Ga(19) is bonded in a 12-coordinate geometry to one Tb(4), one Tb(5), two equivalent Tb(1), one Ga(15), one Ga(9), two equivalent Ga(17), two equivalent Ga(3), and two equivalent Ga(5) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tb6Ga19Pd3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.264
_cell_length_b   8.192
_cell_length_c   16.194
_cell_angle_alpha   106.797
_cell_angle_beta   82.435
_cell_angle_gamma   105.085
_symmetry_Int_Tables_number   1
_cell_volume   521.880
_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  0.251  0.750  0.248  1.0
  Tb  Tb1  1  0.749  0.250  0.751  1.0
  Tb  Tb2  1  0.399  0.205  0.406  1.0
  Tb  Tb3  1  0.908  0.721  0.905  1.0
  Tb  Tb4  1  0.092  0.279  0.095  1.0
  Tb  Tb5  1  0.598  0.793  0.596  1.0
  Ga  Ga6  1  0.176  0.812  0.459  1.0
  Ga  Ga7  1  0.681  0.317  0.955  1.0
  Ga  Ga8  1  0.318  0.677  0.041  1.0
  Ga  Ga9  1  0.823  0.188  0.543  1.0
  Ga  Ga10  1  0.458  0.099  0.183  1.0
  Ga  Ga11  1  0.960  0.596  0.677  1.0
  Ga  Ga12  1  0.040  0.405  0.325  1.0
  Ga  Ga13  1  0.545  0.908  0.819  1.0
  Ga  Ga14  1  0.731  0.571  0.108  1.0
  Ga  Ga15  1  0.238  0.082  0.606  1.0
  Ga  Ga16  1  0.760  0.917  0.398  1.0
  Ga  Ga17  1  0.267  0.424  0.891  1.0
  Ga  Ga18  1  0.605  0.449  0.240  1.0
  Ga  Ga19  1  0.107  0.948  0.733  1.0
  Ga  Ga20  1  0.890  0.049  0.268  1.0
  Ga  Ga21  1  0.395  0.552  0.762  1.0
  Ga  Ga22  1  0.506  0.007  0.994  1.0
  Ga  Ga23  1  1.000  0.500  0.501  1.0
  Ga  Ga24  1  0.898  0.897  0.101  1.0
  Pd  Pd25  1  0.404  0.405  0.597  1.0
  Pd  Pd26  1  0.596  0.595  0.403  1.0
  Pd  Pd27  1  0.103  0.104  0.897  1.0
[/CIF]
.