data_NaPbAu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.76
_cell_length_b   3.76
_cell_length_c   6.38
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaPbAu2
_chemical_formula_sum   'Na1 Pb1 Au2'
_cell_volume   90.42
_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
  Na  Na2  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.0  0.0  0.19  1.0
  Au  Au0  1  0.88  0.88  0.91  1.0
  Au  Au1  1  0.88  0.88  0.47  1.0

data_NaPbAu2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.32
_cell_length_b   5.32
_cell_length_c   6.38
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaPbAu2
_chemical_formula_sum   'Na2 Pb2 Au4'
_cell_volume   180.84
_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
  Na  Na0  2  0.0  0.0  0.0  1.0
  Pb  Pb1  2  0.0  0.0  0.19  1.0
  Au  Au2  2  0.38  0.5  0.47  1.0
  Au  Au3  2  0.38  0.5  0.91  1.0

Na Pb Au Au
Na Pb Au Au 0 2 - - - 0 1 o o o 1 3 - - o 
NaAu2Pb crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two NaAu2Pb clusters. Na(1) is bonded in a distorted bent 120 degrees geometry to one Au(1) and one Pb(1) atom. The Na(1)-Au(1) bond length is 0.85 Å. The Na(1)-Pb(1) bond length is 1.23 Å. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a single-bond geometry to one Na(1) atom. In the second Au site, Au(2) is bonded in a single-bond geometry to one Pb(1) atom. The Au(2)-Pb(1) bond length is 1.90 Å. Pb(1) is bonded in a distorted single-bond geometry to one Na(1) and one Au(2) atom.