data_Nb2TePb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.67
_cell_length_b   4.6
_cell_length_c   5.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb2TePb
_chemical_formula_sum   'Nb2 Te1 Pb1'
_cell_volume   92.04
_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  0.84  0.0  0.72  1.0
  Nb  Nb1  1  0.0  0.0  0.0  1.0
  Te  Te3  1  0.84  0.3  0.0  1.0
  Pb  Pb2  1  0.0  0.3  0.72  1.0

data_Nb2TePb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.67
_cell_length_b   4.6
_cell_length_c   5.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Nb2TePb
_chemical_formula_sum   'Nb2 Te1 Pb1'
_cell_volume   92.04
_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
  Nb  Nb1  1  0.84  0.0  0.72  1.0
  Te  Te2  1  0.84  0.3  0.0  1.0
  Pb  Pb3  1  0.0  0.3  0.72  1.0

Nb Nb Te Pb
Nb2PbTe crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Nb2PbTe cluster. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded in a distorted single-bond geometry to one Pb(1) atom. The Nb(1)-Pb(1) bond length is 1.50 Å. In the second Nb site, Nb(2) is bonded in a distorted single-bond geometry to one Te(1) atom. The Nb(2)-Te(1) bond length is 1.50 Å. Pb(1) is bonded in a 2-coordinate geometry to one Nb(1) and one Te(1) atom. The Pb(1)-Te(1) bond length is 1.62 Å. Te(1) is bonded in a distorted L-shaped geometry to one Nb(2) and one Pb(1) atom.