The structure described by Pb3Sb is beta-derived structured and crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to six equivalent Pb(1) and six equivalent Pb(2) atoms to form PbPb12 cuboctahedra that share corners with six equivalent Pb(1)Pb12 cuboctahedra, corners with twelve equivalent Sb(1)Sb6Pb6 cuboctahedra, edges with six equivalent Pb(1)Pb12 cuboctahedra, edges with twelve equivalent Pb(2)Sb3Pb9 cuboctahedra, faces with two equivalent Sb(1)Sb6Pb6 cuboctahedra, faces with six equivalent Pb(1)Pb12 cuboctahedra, and faces with twelve equivalent Pb(2)Sb3Pb9 cuboctahedra. In the second Pb site, Pb(2) is bonded to three equivalent Pb(1), six equivalent Pb(2), and three equivalent Sb(1) atoms to form distorted PbSb3Pb9 cuboctahedra that share corners with eighteen equivalent Pb(2)Sb3Pb9 cuboctahedra, edges with six equivalent Pb(1)Pb12 cuboctahedra, edges with six equivalent Pb(2)Sb3Pb9 cuboctahedra, edges with six equivalent Sb(1)Sb6Pb6 cuboctahedra, faces with six equivalent Pb(1)Pb12 cuboctahedra, faces with six equivalent Sb(1)Sb6Pb6 cuboctahedra, and faces with eight equivalent Pb(2)Sb3Pb9 cuboctahedra. Sb(1) is bonded to six equivalent Pb(2) and six equivalent Sb(1) atoms to form distorted SbSb6Pb6 cuboctahedra that share corners with six equivalent Sb(1)Sb6Pb6 cuboctahedra, corners with twelve equivalent Pb(1)Pb12 cuboctahedra, edges with six equivalent Sb(1)Sb6Pb6 cuboctahedra, edges with twelve equivalent Pb(2)Sb3Pb9 cuboctahedra, faces with two equivalent Pb(1)Pb12 cuboctahedra, faces with six equivalent Sb(1)Sb6Pb6 cuboctahedra, and faces with twelve equivalent Pb(2)Sb3Pb9 cuboctahedra. is represented by the CIF card [CIF]
data_SbPb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.461
_cell_length_b   3.461
_cell_length_c   11.754
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   121.932
_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
  Sb  Sb0  1  0.333  0.667  0.500  1.0
  Pb  Pb1  1  0.333  0.667  0.000  1.0
  Pb  Pb2  1  0.000  0.000  0.746  1.0
  Pb  Pb3  1  0.000  0.000  0.254  1.0
[/CIF]
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The structure described by Pb3Sb is beta-derived structured and crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to six equivalent Pb(1) and six equivalent Pb(2) atoms to form PbPb12 cuboctahedra that share corners with six equivalent Pb(1)Pb12 cuboctahedra, corners with twelve equivalent Sb(1)Sb6Pb6 cuboctahedra, edges with six equivalent Pb(1)Pb12 cuboctahedra, edges with twelve equivalent Pb(2)Sb3Pb9 cuboctahedra, faces with two equivalent Sb(1)Sb6Pb6 cuboctahedra, faces with six equivalent Pb(1)Pb12 cuboctahedra, and faces with twelve equivalent Pb(2)Sb3Pb9 cuboctahedra. In the second Pb site, Pb(2) is bonded to three equivalent Pb(1), six equivalent Pb(2), and three equivalent Sb(1) atoms to form distorted PbSb3Pb9 cuboctahedra that share corners with eighteen equivalent Pb(2)Sb3Pb9 cuboctahedra, edges with six equivalent Pb(1)Pb12 cuboctahedra, edges with six equivalent Pb(2)Sb3Pb9 cuboctahedra, edges with six equivalent Sb(1)Sb6Pb6 cuboctahedra, faces with six equivalent Pb(1)Pb12 cuboctahedra, faces with six equivalent Sb(1)Sb6Pb6 cuboctahedra, and faces with eight equivalent Pb(2)Sb3Pb9 cuboctahedra. Sb(1) is bonded to six equivalent Pb(2) and six equivalent Sb(1) atoms to form distorted SbSb6Pb6 cuboctahedra that share corners with six equivalent Sb(1)Sb6Pb6 cuboctahedra, corners with twelve equivalent Pb(1)Pb12 cuboctahedra, edges with six equivalent Sb(1)Sb6Pb6 cuboctahedra, edges with twelve equivalent Pb(2)Sb3Pb9 cuboctahedra, faces with two equivalent Pb(1)Pb12 cuboctahedra, faces with six equivalent Sb(1)Sb6Pb6 cuboctahedra, and faces with twelve equivalent Pb(2)Sb3Pb9 cuboctahedra. is represented by the CIF card [CIF]
data_SbPb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.461
_cell_length_b   3.461
_cell_length_c   11.754
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   121.932
_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
  Sb  Sb0  1  0.333  0.667  0.500  1.0
  Pb  Pb1  1  0.333  0.667  0.000  1.0
  Pb  Pb2  1  0.000  0.000  0.746  1.0
  Pb  Pb3  1  0.000  0.000  0.254  1.0
[/CIF]
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