data_NbB2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.17
_cell_length_b   4.17
_cell_length_c   3.2
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NbB2Pb
_chemical_formula_sum   'Nb1 B2 Pb1'
_cell_volume   55.7
_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  Nb2  1  0.0  0.0  0.0  1.0
  B  B0  1  0.08  0.0  0.6  1.0
  B  B1  1  0.0  0.08  0.6  1.0
  Pb  Pb3  1  0.08  0.08  0.0  1.0

data_NbB2Pb
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.9
_cell_length_b   5.9
_cell_length_c   3.2
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NbB2Pb
_chemical_formula_sum   'Nb2 B4 Pb2'
_cell_volume   111.39
_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
  B  B1  4  0.04  0.04  0.6  1.0
  Pb  Pb2  2  0.08  0.0  0.0  1.0

Nb B B Pb
PbNb1(B)2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two 14452-61-0 molecules and two PbNb1 clusters. In each PbNb1 cluster, Nb(1) is bonded in a single-bond geometry to one Pb(1) atom. The Nb(1)-Pb(1) bond length is 0.50 Å. Pb(1) is bonded in a single-bond geometry to one Nb(1) atom.