The crystal structure described by Pd3Ta is Uranium Silicide-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to six Pd(1,1) and six equivalent Pd(3) atoms to form TaPd12 cuboctahedra that share corners with six equivalent Ta(1)Pd12 cuboctahedra; corners with six equivalent Ta(2)Pd12 cuboctahedra; edges with six equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with twelve Pd(1,1)Ta4Pd8 cuboctahedra; faces with six equivalent Ta(3)Pd12 cuboctahedra; faces with six Pd(1,1)Ta4Pd8 cuboctahedra; and faces with six equivalent Pd(3)Ta4Pd8 cuboctahedra. In the second Ta site, Ta(2) is bonded to three Pd(1,1) and nine equivalent Pd(2) atoms to form TaPd12 cuboctahedra that share corners with three equivalent Ta(1)Pd12 cuboctahedra; corners with six equivalent Ta(2)Pd12 cuboctahedra; corners with six Pd(1,1)Ta4Pd8 cuboctahedra; edges with three equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with six Pd(1,1)Ta4Pd8 cuboctahedra; faces with three equivalent Ta(2)Pd12 cuboctahedra; faces with three Pd(1,1)Ta4Pd8 cuboctahedra; and faces with four equivalent Ta(3)Pd12 cuboctahedra. In the third Ta site, Ta(3) is bonded to three equivalent Pd(2); three Pd(3,3); and six Pd(1,1) atoms to form TaPd12 cuboctahedra that share corners with six equivalent Ta(3)Pd12 cuboctahedra; corners with six Pd(1,1)Ta4Pd8 cuboctahedra; edges with six Pd(1,1)Ta4Pd8 cuboctahedra; edges with six Pd(3,3)Ta4Pd8 cuboctahedra;  a faceface with one Ta(3)Pd12 cuboctahedra; faces with three equivalent Ta(1)Pd12 cuboctahedra; faces with three Pd(3,3)Ta4Pd8 cuboctahedra; faces with four equivalent Ta(2)Pd12 cuboctahedra; and faces with six Pd(1,1)Ta4Pd8 cuboctahedra. There are five inequivalent Pd sites. In the first Pd site, Pd(3) is bonded to two equivalent Ta(1); two equivalent Ta(3); four Pd(1,1); and four equivalent Pd(3) atoms to form distorted PdTa4Pd8 cuboctahedra that share corners with six equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with two equivalent Ta(1)Pd12 cuboctahedra; edges with two equivalent Ta(2)Pd12 cuboctahedra; edges with four equivalent Ta(3)Pd12 cuboctahedra; edges with four equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with eight Pd(1,1)Ta4Pd8 cuboctahedra; faces with two equivalent Ta(1)Pd12 cuboctahedra; faces with two equivalent Ta(3)Pd12 cuboctahedra; faces with four equivalent Pd(3)Ta4Pd8 cuboctahedra; and faces with ten Pd(1,1)Ta4Pd8 cuboctahedra. In the second Pd site, Pd(1) is bonded to one Ta(1); one Ta(2); two equivalent Ta(3); two equivalent Pd(2); two Pd(3,3); and four Pd(1,1) atoms to form distorted PdTa4Pd8 cuboctahedra that share corners with two equivalent Ta(2)Pd12 cuboctahedra; corners with two equivalent Ta(3)Pd12 cuboctahedra; corners with ten Pd(1,1)Ta4Pd8 cuboctahedra; edges with two equivalent Ta(1)Pd12 cuboctahedra; edges with two equivalent Ta(2)Pd12 cuboctahedra; edges with two equivalent Ta(3)Pd12 cuboctahedra; edges with four Pd(1,1)Ta4Pd8 cuboctahedra; edges with four Pd(3,3)Ta4Pd8 cuboctahedra;  a faceface with one Ta(1)Pd12 cuboctahedra;  a faceface with one Ta(2)Pd12 cuboctahedra; faces with two equivalent Ta(3)Pd12 cuboctahedra; faces with five Pd(1,1)Ta4Pd8 cuboctahedra; and faces with five Pd(3,3)Ta4Pd8 cuboctahedra. In the third Pd site, Pd(2) is bonded in a distorted see-saw-like geometry to one Ta(3), three equivalent Ta(2), and two equivalent Pd(1) atoms. In the fourth Pd site, Pd(3) is bonded to two equivalent Ta(1), two equivalent Ta(3), four equivalent Pd(1), and four equivalent Pd(3) atoms to form distorted PdTa4Pd8 cuboctahedra that share corners with six equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with two equivalent Ta(1)Pd12 cuboctahedra; edges with two equivalent Ta(2)Pd12 cuboctahedra; edges with four equivalent Ta(3)Pd12 cuboctahedra; edges with four equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with eight equivalent Pd(1)Ta4Pd8 cuboctahedra; faces with two equivalent Ta(1)Pd12 cuboctahedra; faces with two equivalent Ta(3)Pd12 cuboctahedra; faces with four equivalent Pd(3)Ta4Pd8 cuboctahedra; and faces with ten Pd(1,1)Ta4Pd8 cuboctahedra. In the fifth Pd site, Pd(1) is bonded to one Ta(1); one Ta(2); two equivalent Ta(3); two equivalent Pd(2); two equivalent Pd(3); and four Pd(1,1) atoms to form distorted PdTa4Pd8 cuboctahedra that share corners with two equivalent Ta(2)Pd12 cuboctahedra; corners with two equivalent Ta(3)Pd12 cuboctahedra; corners with ten Pd(1,1)Ta4Pd8 cuboctahedra; edges with two equivalent Ta(1)Pd12 cuboctahedra; edges with two equivalent Ta(2)Pd12 cuboctahedra; edges with two equivalent Ta(3)Pd12 cuboctahedra; edges with four Pd(1,1)Ta4Pd8 cuboctahedra; edges with four equivalent Pd(3)Ta4Pd8 cuboctahedra;  a faceface with one Ta(1)Pd12 cuboctahedra;  a faceface with one Ta(2)Pd12 cuboctahedra; faces with two equivalent Ta(3)Pd12 cuboctahedra; faces with five Pd(1,1)Ta4Pd8 cuboctahedra; and faces with five equivalent Pd(3)Ta4Pd8 cuboctahedra. is represented by the CIF card [CIF]
data_TaPd3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.570
_cell_length_b   5.570
_cell_length_c   23.413
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   629.037
_cell_formula_units_Z   10
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
  Ta  Ta0  1  0.000  0.000  0.250  1.0
  Ta  Ta1  1  0.667  0.333  0.456  1.0
  Ta  Ta2  1  0.667  0.333  0.044  1.0
  Ta  Ta3  1  0.667  0.333  0.651  1.0
  Ta  Ta4  1  0.333  0.667  0.349  1.0
  Ta  Ta5  1  0.333  0.667  0.956  1.0
  Ta  Ta6  1  0.000  0.000  0.750  1.0
  Ta  Ta7  1  0.333  0.667  0.544  1.0
  Ta  Ta8  1  0.667  0.333  0.849  1.0
  Ta  Ta9  1  0.333  0.667  0.151  1.0
  Pd  Pd10  1  0.167  0.833  0.651  1.0
  Pd  Pd11  1  0.336  0.168  0.947  1.0
  Pd  Pd12  1  0.168  0.832  0.053  1.0
  Pd  Pd13  1  0.167  0.334  0.849  1.0
  Pd  Pd14  1  0.002  0.501  0.250  1.0
  Pd  Pd15  1  0.664  0.832  0.447  1.0
  Pd  Pd16  1  0.833  0.666  0.349  1.0
  Pd  Pd17  1  0.832  0.168  0.553  1.0
  Pd  Pd18  1  0.832  0.664  0.947  1.0
  Pd  Pd19  1  0.168  0.832  0.447  1.0
  Pd  Pd20  1  0.833  0.167  0.151  1.0
  Pd  Pd21  1  0.666  0.833  0.849  1.0
  Pd  Pd22  1  0.336  0.168  0.553  1.0
  Pd  Pd23  1  0.334  0.167  0.349  1.0
  Pd  Pd24  1  0.666  0.833  0.651  1.0
  Pd  Pd25  1  0.832  0.168  0.947  1.0
  Pd  Pd26  1  0.499  0.998  0.250  1.0
  Pd  Pd27  1  0.501  0.499  0.750  1.0
  Pd  Pd28  1  0.664  0.832  0.053  1.0
  Pd  Pd29  1  0.833  0.167  0.349  1.0
  Pd  Pd30  1  0.168  0.336  0.053  1.0
  Pd  Pd31  1  0.832  0.664  0.553  1.0
  Pd  Pd32  1  0.167  0.334  0.651  1.0
  Pd  Pd33  1  0.833  0.666  0.151  1.0
  Pd  Pd34  1  0.168  0.336  0.447  1.0
  Pd  Pd35  1  0.998  0.499  0.750  1.0
  Pd  Pd36  1  0.167  0.833  0.849  1.0
  Pd  Pd37  1  0.501  0.002  0.750  1.0
  Pd  Pd38  1  0.499  0.501  0.250  1.0
  Pd  Pd39  1  0.334  0.167  0.151  1.0
[/CIF]
.
The crystal structure described by Pd3Ta is Uranium Silicide-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to six Pd(1,1) and six equivalent Pd(3) atoms to form TaPd12 cuboctahedra that share corners with six equivalent Ta(1)Pd12 cuboctahedra; corners with six equivalent Ta(2)Pd12 cuboctahedra; edges with six equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with twelve Pd(1,1)Ta4Pd8 cuboctahedra; faces with six equivalent Ta(3)Pd12 cuboctahedra; faces with six Pd(1,1)Ta4Pd8 cuboctahedra; and faces with six equivalent Pd(3)Ta4Pd8 cuboctahedra. In the second Ta site, Ta(2) is bonded to three Pd(1,1) and nine equivalent Pd(2) atoms to form TaPd12 cuboctahedra that share corners with three equivalent Ta(1)Pd12 cuboctahedra; corners with six equivalent Ta(2)Pd12 cuboctahedra; corners with six Pd(1,1)Ta4Pd8 cuboctahedra; edges with three equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with six Pd(1,1)Ta4Pd8 cuboctahedra; faces with three equivalent Ta(2)Pd12 cuboctahedra; faces with three Pd(1,1)Ta4Pd8 cuboctahedra; and faces with four equivalent Ta(3)Pd12 cuboctahedra. In the third Ta site, Ta(3) is bonded to three equivalent Pd(2); three Pd(3,3); and six Pd(1,1) atoms to form TaPd12 cuboctahedra that share corners with six equivalent Ta(3)Pd12 cuboctahedra; corners with six Pd(1,1)Ta4Pd8 cuboctahedra; edges with six Pd(1,1)Ta4Pd8 cuboctahedra; edges with six Pd(3,3)Ta4Pd8 cuboctahedra;  a faceface with one Ta(3)Pd12 cuboctahedra; faces with three equivalent Ta(1)Pd12 cuboctahedra; faces with three Pd(3,3)Ta4Pd8 cuboctahedra; faces with four equivalent Ta(2)Pd12 cuboctahedra; and faces with six Pd(1,1)Ta4Pd8 cuboctahedra. There are five inequivalent Pd sites. In the first Pd site, Pd(3) is bonded to two equivalent Ta(1); two equivalent Ta(3); four Pd(1,1); and four equivalent Pd(3) atoms to form distorted PdTa4Pd8 cuboctahedra that share corners with six equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with two equivalent Ta(1)Pd12 cuboctahedra; edges with two equivalent Ta(2)Pd12 cuboctahedra; edges with four equivalent Ta(3)Pd12 cuboctahedra; edges with four equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with eight Pd(1,1)Ta4Pd8 cuboctahedra; faces with two equivalent Ta(1)Pd12 cuboctahedra; faces with two equivalent Ta(3)Pd12 cuboctahedra; faces with four equivalent Pd(3)Ta4Pd8 cuboctahedra; and faces with ten Pd(1,1)Ta4Pd8 cuboctahedra. In the second Pd site, Pd(1) is bonded to one Ta(1); one Ta(2); two equivalent Ta(3); two equivalent Pd(2); two Pd(3,3); and four Pd(1,1) atoms to form distorted PdTa4Pd8 cuboctahedra that share corners with two equivalent Ta(2)Pd12 cuboctahedra; corners with two equivalent Ta(3)Pd12 cuboctahedra; corners with ten Pd(1,1)Ta4Pd8 cuboctahedra; edges with two equivalent Ta(1)Pd12 cuboctahedra; edges with two equivalent Ta(2)Pd12 cuboctahedra; edges with two equivalent Ta(3)Pd12 cuboctahedra; edges with four Pd(1,1)Ta4Pd8 cuboctahedra; edges with four Pd(3,3)Ta4Pd8 cuboctahedra;  a faceface with one Ta(1)Pd12 cuboctahedra;  a faceface with one Ta(2)Pd12 cuboctahedra; faces with two equivalent Ta(3)Pd12 cuboctahedra; faces with five Pd(1,1)Ta4Pd8 cuboctahedra; and faces with five Pd(3,3)Ta4Pd8 cuboctahedra. In the third Pd site, Pd(2) is bonded in a distorted see-saw-like geometry to one Ta(3), three equivalent Ta(2), and two equivalent Pd(1) atoms. In the fourth Pd site, Pd(3) is bonded to two equivalent Ta(1), two equivalent Ta(3), four equivalent Pd(1), and four equivalent Pd(3) atoms to form distorted PdTa4Pd8 cuboctahedra that share corners with six equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with two equivalent Ta(1)Pd12 cuboctahedra; edges with two equivalent Ta(2)Pd12 cuboctahedra; edges with four equivalent Ta(3)Pd12 cuboctahedra; edges with four equivalent Pd(3)Ta4Pd8 cuboctahedra; edges with eight equivalent Pd(1)Ta4Pd8 cuboctahedra; faces with two equivalent Ta(1)Pd12 cuboctahedra; faces with two equivalent Ta(3)Pd12 cuboctahedra; faces with four equivalent Pd(3)Ta4Pd8 cuboctahedra; and faces with ten Pd(1,1)Ta4Pd8 cuboctahedra. In the fifth Pd site, Pd(1) is bonded to one Ta(1); one Ta(2); two equivalent Ta(3); two equivalent Pd(2); two equivalent Pd(3); and four Pd(1,1) atoms to form distorted PdTa4Pd8 cuboctahedra that share corners with two equivalent Ta(2)Pd12 cuboctahedra; corners with two equivalent Ta(3)Pd12 cuboctahedra; corners with ten Pd(1,1)Ta4Pd8 cuboctahedra; edges with two equivalent Ta(1)Pd12 cuboctahedra; edges with two equivalent Ta(2)Pd12 cuboctahedra; edges with two equivalent Ta(3)Pd12 cuboctahedra; edges with four Pd(1,1)Ta4Pd8 cuboctahedra; edges with four equivalent Pd(3)Ta4Pd8 cuboctahedra;  a faceface with one Ta(1)Pd12 cuboctahedra;  a faceface with one Ta(2)Pd12 cuboctahedra; faces with two equivalent Ta(3)Pd12 cuboctahedra; faces with five Pd(1,1)Ta4Pd8 cuboctahedra; and faces with five equivalent Pd(3)Ta4Pd8 cuboctahedra. is represented by the CIF card [CIF]
data_TaPd3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.570
_cell_length_b   5.570
_cell_length_c   23.413
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   629.037
_cell_formula_units_Z   10
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
  Ta  Ta0  1  0.000  0.000  0.250  1.0
  Ta  Ta1  1  0.667  0.333  0.456  1.0
  Ta  Ta2  1  0.667  0.333  0.044  1.0
  Ta  Ta3  1  0.667  0.333  0.651  1.0
  Ta  Ta4  1  0.333  0.667  0.349  1.0
  Ta  Ta5  1  0.333  0.667  0.956  1.0
  Ta  Ta6  1  0.000  0.000  0.750  1.0
  Ta  Ta7  1  0.333  0.667  0.544  1.0
  Ta  Ta8  1  0.667  0.333  0.849  1.0
  Ta  Ta9  1  0.333  0.667  0.151  1.0
  Pd  Pd10  1  0.167  0.833  0.651  1.0
  Pd  Pd11  1  0.336  0.168  0.947  1.0
  Pd  Pd12  1  0.168  0.832  0.053  1.0
  Pd  Pd13  1  0.167  0.334  0.849  1.0
  Pd  Pd14  1  0.002  0.501  0.250  1.0
  Pd  Pd15  1  0.664  0.832  0.447  1.0
  Pd  Pd16  1  0.833  0.666  0.349  1.0
  Pd  Pd17  1  0.832  0.168  0.553  1.0
  Pd  Pd18  1  0.832  0.664  0.947  1.0
  Pd  Pd19  1  0.168  0.832  0.447  1.0
  Pd  Pd20  1  0.833  0.167  0.151  1.0
  Pd  Pd21  1  0.666  0.833  0.849  1.0
  Pd  Pd22  1  0.336  0.168  0.553  1.0
  Pd  Pd23  1  0.334  0.167  0.349  1.0
  Pd  Pd24  1  0.666  0.833  0.651  1.0
  Pd  Pd25  1  0.832  0.168  0.947  1.0
  Pd  Pd26  1  0.499  0.998  0.250  1.0
  Pd  Pd27  1  0.501  0.499  0.750  1.0
  Pd  Pd28  1  0.664  0.832  0.053  1.0
  Pd  Pd29  1  0.833  0.167  0.349  1.0
  Pd  Pd30  1  0.168  0.336  0.053  1.0
  Pd  Pd31  1  0.832  0.664  0.553  1.0
  Pd  Pd32  1  0.167  0.334  0.651  1.0
  Pd  Pd33  1  0.833  0.666  0.151  1.0
  Pd  Pd34  1  0.168  0.336  0.447  1.0
  Pd  Pd35  1  0.998  0.499  0.750  1.0
  Pd  Pd36  1  0.167  0.833  0.849  1.0
  Pd  Pd37  1  0.501  0.002  0.750  1.0
  Pd  Pd38  1  0.499  0.501  0.250  1.0
  Pd  Pd39  1  0.334  0.167  0.151  1.0
[/CIF]
.