The material structure described by Ag3Pb crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to six equivalent Ag(1) and six equivalent Ag(2) atoms to form AgAg12 cuboctahedra that share corners with six equivalent Ag(1)Ag12 cuboctahedra, corners with twelve equivalent Pb(1)Ag6Pb6 cuboctahedra, edges with six equivalent Ag(1)Ag12 cuboctahedra, edges with twelve equivalent Ag(2)Ag9Pb3 cuboctahedra, faces with two equivalent Pb(1)Ag6Pb6 cuboctahedra, faces with six equivalent Ag(1)Ag12 cuboctahedra, and faces with twelve equivalent Ag(2)Ag9Pb3 cuboctahedra. In the second Ag site, Ag(2) is bonded to three equivalent Ag(1), six equivalent Ag(2), and three equivalent Pb(1) atoms to form distorted AgAg9Pb3 cuboctahedra that share corners with eighteen equivalent Ag(2)Ag9Pb3 cuboctahedra, edges with six equivalent Ag(1)Ag12 cuboctahedra, edges with six equivalent Ag(2)Ag9Pb3 cuboctahedra, edges with six equivalent Pb(1)Ag6Pb6 cuboctahedra, faces with six equivalent Ag(1)Ag12 cuboctahedra, faces with six equivalent Pb(1)Ag6Pb6 cuboctahedra, and faces with eight equivalent Ag(2)Ag9Pb3 cuboctahedra. Pb(1) is bonded to six equivalent Ag(2) and six equivalent Pb(1) atoms to form distorted PbAg6Pb6 cuboctahedra that share corners with six equivalent Pb(1)Ag6Pb6 cuboctahedra, corners with twelve equivalent Ag(1)Ag12 cuboctahedra, edges with six equivalent Pb(1)Ag6Pb6 cuboctahedra, edges with twelve equivalent Ag(2)Ag9Pb3 cuboctahedra, faces with two equivalent Ag(1)Ag12 cuboctahedra, faces with six equivalent Pb(1)Ag6Pb6 cuboctahedra, and faces with twelve equivalent Ag(2)Ag9Pb3 cuboctahedra. is represented by the CIF file [CIF]
data_Ag3Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.247
_cell_length_b   3.247
_cell_length_c   9.490
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.985
_symmetry_Int_Tables_number   1
_cell_volume   86.646
_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
  Ag  Ag0  1  0.667  0.333  0.875  1.0
  Ag  Ag1  1  0.333  0.667  0.107  1.0
  Ag  Ag2  1  0.333  0.667  0.643  1.0
  Pb  Pb3  1  0.667  0.333  0.375  1.0
[/CIF]
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The material structure described by Ag3Pb crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to six equivalent Ag(1) and six equivalent Ag(2) atoms to form AgAg12 cuboctahedra that share corners with six equivalent Ag(1)Ag12 cuboctahedra, corners with twelve equivalent Pb(1)Ag6Pb6 cuboctahedra, edges with six equivalent Ag(1)Ag12 cuboctahedra, edges with twelve equivalent Ag(2)Ag9Pb3 cuboctahedra, faces with two equivalent Pb(1)Ag6Pb6 cuboctahedra, faces with six equivalent Ag(1)Ag12 cuboctahedra, and faces with twelve equivalent Ag(2)Ag9Pb3 cuboctahedra. In the second Ag site, Ag(2) is bonded to three equivalent Ag(1), six equivalent Ag(2), and three equivalent Pb(1) atoms to form distorted AgAg9Pb3 cuboctahedra that share corners with eighteen equivalent Ag(2)Ag9Pb3 cuboctahedra, edges with six equivalent Ag(1)Ag12 cuboctahedra, edges with six equivalent Ag(2)Ag9Pb3 cuboctahedra, edges with six equivalent Pb(1)Ag6Pb6 cuboctahedra, faces with six equivalent Ag(1)Ag12 cuboctahedra, faces with six equivalent Pb(1)Ag6Pb6 cuboctahedra, and faces with eight equivalent Ag(2)Ag9Pb3 cuboctahedra. Pb(1) is bonded to six equivalent Ag(2) and six equivalent Pb(1) atoms to form distorted PbAg6Pb6 cuboctahedra that share corners with six equivalent Pb(1)Ag6Pb6 cuboctahedra, corners with twelve equivalent Ag(1)Ag12 cuboctahedra, edges with six equivalent Pb(1)Ag6Pb6 cuboctahedra, edges with twelve equivalent Ag(2)Ag9Pb3 cuboctahedra, faces with two equivalent Ag(1)Ag12 cuboctahedra, faces with six equivalent Pb(1)Ag6Pb6 cuboctahedra, and faces with twelve equivalent Ag(2)Ag9Pb3 cuboctahedra. is represented by the CIF file [CIF]
data_Ag3Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.247
_cell_length_b   3.247
_cell_length_c   9.490
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.985
_symmetry_Int_Tables_number   1
_cell_volume   86.646
_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
  Ag  Ag0  1  0.667  0.333  0.875  1.0
  Ag  Ag1  1  0.333  0.667  0.107  1.0
  Ag  Ag2  1  0.333  0.667  0.643  1.0
  Pb  Pb3  1  0.667  0.333  0.375  1.0
[/CIF]
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