data_TaTe2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.49
_cell_length_b   3.49
_cell_length_c   8.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TaTe2Pb
_chemical_formula_sum   'Ta1 Te2 Pb1'
_cell_volume   101.35
_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  Ta1  1  0.0  0.0  0.0  1.0
  Te  Te2  1  0.74  0.74  0.63  1.0
  Te  Te3  1  0.74  0.74  0.7  1.0
  Pb  Pb0  1  0.0  0.0  0.16  1.0

data_TaTe2Pb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.93
_cell_length_b   4.93
_cell_length_c   8.33
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TaTe2Pb
_chemical_formula_sum   'Ta2 Te4 Pb2'
_cell_volume   202.7
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.0  1.0
  Te  Te1  2  0.24  0.5  0.63  1.0
  Te  Te2  2  0.24  0.5  0.7  1.0
  Pb  Pb3  2  0.0  0.0  0.16  1.0

Ta Te Te Pb
Ta Te Te Pb 0 3 o o o 1 2 o o o 
TaPbTe2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two TaPbTe2 clusters. Ta(1) is bonded in a distorted single-bond geometry to one Pb(1) and one Te(2) atom. The Ta(1)-Pb(1) bond length is 1.36 Å. The Ta(1)-Te(2) bond length is 2.81 Å. Pb(1) is bonded in a single-bond geometry to one Ta(1) atom. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a single-bond geometry to one Te(2) atom. The Te(1)-Te(2) bond length is 0.57 Å. In the second Te site, Te(2) is bonded in a distorted bent 150 degrees geometry to one Ta(1) and one Te(1) atom.