data_Ta2PdPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.28
_cell_length_b   5.28
_cell_length_c   3.0
_cell_angle_alpha   93.55
_cell_angle_beta   93.55
_cell_angle_gamma   114.88
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2PdPb
_chemical_formula_sum   'Ta2 Pd1 Pb1'
_cell_volume   75.26
_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
  Ta  Ta2  1  0.25  0.78  0.49  1.0
  Ta  Ta3  1  0.25  0.22  0.49  1.0
  Pd  Pd1  1  0.0  0.0  0.0  1.0
  Pb  Pb0  1  0.84  0.0  0.0  1.0

data_Ta2PdPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.0
_cell_length_b   5.28
_cell_length_c   5.28
_cell_angle_alpha   114.88
_cell_angle_beta   93.55
_cell_angle_gamma   93.55
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2PdPb
_chemical_formula_sum   'Ta2 Pd1 Pb1'
_cell_volume   75.26
_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
  Ta  Ta0  1  0.49  0.25  0.22  1.0
  Ta  Ta1  1  0.49  0.25  0.78  1.0
  Pd  Pd2  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.0  0.84  0.0  1.0

Ta Ta Pd Pb
Ta2PdPb crystallizes in the triclinic P1 space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 8-coordinate geometry to two equivalent Ta(1), two equivalent Ta(2), two equivalent Pd(1), and two equivalent Pb(1) atoms. Both Ta(1)-Ta(1) bond lengths are 3.00 Å. There is one shorter (2.38 Å) and one longer (2.90 Å) Ta(1)-Ta(2) bond length. There is one shorter (2.56 Å) and one longer (2.61 Å) Ta(1)-Pd(1) bond length. There is one shorter (3.10 Å) and one longer (3.32 Å) Ta(1)-Pb(1) bond length. In the second Ta site, Ta(2) is bonded in a distorted L-shaped geometry to two equivalent Ta(1) and two equivalent Pd(1) atoms. There is one shorter (1.87 Å) and one longer (2.16 Å) Ta(2)-Pd(1) bond length. Pd(1) is bonded in a 3-coordinate geometry to two equivalent Ta(1), two equivalent Ta(2), and one Pb(1) atom. The Pd(1)-Pb(1) bond length is 0.84 Å. Pb(1) is bonded in a single-bond geometry to two equivalent Ta(1) and one Pd(1) atom.