The material structure described by AuPb3 crystallizes in the monoclinic C2 space group. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a 8-coordinate geometry to one Pb(2), one Pb(3), one Pb(4), one Pb(5), one Pb(6), one Pb(7), and two equivalent Pb(1) atoms. In the second Au site, Au(2) is bonded in a 8-coordinate geometry to two equivalent Pb(1), two equivalent Pb(2), two equivalent Pb(5), and two equivalent Pb(7) atoms. In the third Au site, Au(3) is bonded in a 8-coordinate geometry to two equivalent Pb(1), two equivalent Pb(3), two equivalent Pb(4), and two equivalent Pb(6) atoms. There are seven inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one Au(2), one Au(3), and two equivalent Au(1) atoms. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to two equivalent Au(1) and two equivalent Au(2) atoms. In the third Pb site, Pb(3) is bonded in a 4-coordinate geometry to two equivalent Au(1) and two equivalent Au(3) atoms. In the fourth Pb site, Pb(4) is bonded in a 2-coordinate geometry to one Au(1) and one Au(3) atom. In the fifth Pb site, Pb(5) is bonded in a 2-coordinate geometry to one Au(1) and one Au(2) atom. In the sixth Pb site, Pb(6) is bonded in a distorted bent 120 degrees geometry to one Au(1) and one Au(3) atom. In the seventh Pb site, Pb(7) is bonded in a distorted bent 120 degrees geometry to one Au(1) and one Au(2) atom. is represented by the CIF file [CIF]
data_Pb3Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.084
_cell_length_b   9.024
_cell_length_c   9.024
_cell_angle_alpha   83.598
_cell_angle_beta   70.660
_cell_angle_gamma   70.660
_symmetry_Int_Tables_number   1
_cell_volume   441.126
_cell_formula_units_Z   4
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
  Pb  Pb0  1  0.357  0.642  0.643  1.0
  Pb  Pb1  1  0.000  0.642  0.358  1.0
  Pb  Pb2  1  0.000  0.357  0.643  1.0
  Pb  Pb3  1  0.643  0.357  0.358  1.0
  Pb  Pb4  1  0.851  0.000  0.806  1.0
  Pb  Pb5  1  0.342  0.808  1.000  1.0
  Pb  Pb6  1  0.149  0.194  1.000  1.0
  Pb  Pb7  1  0.658  0.000  0.192  1.0
  Pb  Pb8  1  0.482  0.999  0.592  1.0
  Pb  Pb9  1  0.925  0.595  0.001  1.0
  Pb  Pb10  1  0.518  0.408  0.001  1.0
  Pb  Pb11  1  0.075  0.999  0.405  1.0
  Au  Au12  1  0.795  0.704  0.705  1.0
  Au  Au13  1  0.500  0.704  0.296  1.0
  Au  Au14  1  0.500  0.295  0.705  1.0
  Au  Au15  1  0.205  0.295  0.296  1.0
[/CIF]
.
The material structure described by AuPb3 crystallizes in the monoclinic C2 space group. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded in a 8-coordinate geometry to one Pb(2), one Pb(3), one Pb(4), one Pb(5), one Pb(6), one Pb(7), and two equivalent Pb(1) atoms. In the second Au site, Au(2) is bonded in a 8-coordinate geometry to two equivalent Pb(1), two equivalent Pb(2), two equivalent Pb(5), and two equivalent Pb(7) atoms. In the third Au site, Au(3) is bonded in a 8-coordinate geometry to two equivalent Pb(1), two equivalent Pb(3), two equivalent Pb(4), and two equivalent Pb(6) atoms. There are seven inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to one Au(2), one Au(3), and two equivalent Au(1) atoms. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to two equivalent Au(1) and two equivalent Au(2) atoms. In the third Pb site, Pb(3) is bonded in a 4-coordinate geometry to two equivalent Au(1) and two equivalent Au(3) atoms. In the fourth Pb site, Pb(4) is bonded in a 2-coordinate geometry to one Au(1) and one Au(3) atom. In the fifth Pb site, Pb(5) is bonded in a 2-coordinate geometry to one Au(1) and one Au(2) atom. In the sixth Pb site, Pb(6) is bonded in a distorted bent 120 degrees geometry to one Au(1) and one Au(3) atom. In the seventh Pb site, Pb(7) is bonded in a distorted bent 120 degrees geometry to one Au(1) and one Au(2) atom. is represented by the CIF file [CIF]
data_Pb3Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.084
_cell_length_b   9.024
_cell_length_c   9.024
_cell_angle_alpha   83.598
_cell_angle_beta   70.660
_cell_angle_gamma   70.660
_symmetry_Int_Tables_number   1
_cell_volume   441.126
_cell_formula_units_Z   4
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
  Pb  Pb0  1  0.357  0.642  0.643  1.0
  Pb  Pb1  1  0.000  0.642  0.358  1.0
  Pb  Pb2  1  0.000  0.357  0.643  1.0
  Pb  Pb3  1  0.643  0.357  0.358  1.0
  Pb  Pb4  1  0.851  0.000  0.806  1.0
  Pb  Pb5  1  0.342  0.808  1.000  1.0
  Pb  Pb6  1  0.149  0.194  1.000  1.0
  Pb  Pb7  1  0.658  0.000  0.192  1.0
  Pb  Pb8  1  0.482  0.999  0.592  1.0
  Pb  Pb9  1  0.925  0.595  0.001  1.0
  Pb  Pb10  1  0.518  0.408  0.001  1.0
  Pb  Pb11  1  0.075  0.999  0.405  1.0
  Au  Au12  1  0.795  0.704  0.705  1.0
  Au  Au13  1  0.500  0.704  0.296  1.0
  Au  Au14  1  0.500  0.295  0.705  1.0
  Au  Au15  1  0.205  0.295  0.296  1.0
[/CIF]
.