data_NbTe2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.36
_cell_length_b   5.36
_cell_length_c   3.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NbTe2Pb
_chemical_formula_sum   'Nb1 Te2 Pb1'
_cell_volume   106.11
_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
  Nb  Nb0  1  0.0  0.0  0.0  1.0
  Te  Te2  1  0.68  0.0  0.85  1.0
  Te  Te3  1  0.0  0.68  0.85  1.0
  Pb  Pb1  1  0.68  0.68  0.0  1.0

data_NbTe2Pb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.58
_cell_length_b   7.58
_cell_length_c   3.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NbTe2Pb
_chemical_formula_sum   'Nb2 Te4 Pb2'
_cell_volume   212.23
_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
  Nb  Nb0  2  0.0  0.0  0.0  1.0
  Te  Te1  4  0.34  0.34  0.85  1.0
  Pb  Pb2  2  0.18  0.5  0.0  1.0

Nb Te Te Pb
Nb Te Te Pb 0 1 - o - 0 2 o - - 1 3 o - + 2 3 - o + 
NbPbTe2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two NbPbTe2 clusters. Nb(1) is bonded in an L-shaped geometry to two equivalent Te(1) atoms. Both Nb(1)-Te(1) bond lengths are 1.81 Å. Pb(1) is bonded in an L-shaped geometry to two equivalent Te(1) atoms. Both Pb(1)-Te(1) bond lengths are 1.81 Å. Te(1) is bonded in an L-shaped geometry to one Nb(1) and one Pb(1) atom.