data_TaCoPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.18
_cell_length_b   3.18
_cell_length_c   8.35
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   107.05
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaCoPb2
_chemical_formula_sum   'Ta1 Co1 Pb2'
_cell_volume   80.53
_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  Ta3  1  0.0  0.0  0.18  1.0
  Co  Co0  1  0.0  0.0  0.0  1.0
  Pb  Pb1  1  0.89  0.0  0.87  1.0
  Pb  Pb2  1  0.89  0.0  0.48  1.0

data_TaCoPb2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.18
_cell_length_b   3.18
_cell_length_c   8.35
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   107.05
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaCoPb2
_chemical_formula_sum   'Ta1 Co1 Pb2'
_cell_volume   80.53
_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  0.0  0.0  0.18  1.0
  Co  Co1  1  0.0  0.0  0.0  1.0
  Pb  Pb2  1  0.89  0.0  0.48  1.0
  Pb  Pb3  1  0.89  0.0  0.87  1.0

Ta Co Pb Pb
TaCoPb2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one TaCoPb2 cluster. Ta(1) is bonded in a distorted linear geometry to one Co(1) and one Pb(2) atom. The Ta(1)-Co(1) bond length is 1.46 Å. The Ta(1)-Pb(2) bond length is 2.60 Å. Co(1) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Pb(1) atom. The Co(1)-Pb(1) bond length is 1.17 Å. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a single-bond geometry to one Co(1) atom. In the second Pb site, Pb(2) is bonded in a single-bond geometry to one Ta(1) atom.