The material structure described by HgPb3 crystallizes in the tetragonal P4/mmm space group. Hg(1) is bonded in a body-centered cubic geometry to eight equivalent Pb(1) atoms. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to four equivalent Hg(1) and four equivalent Pb(2) atoms. In the second Pb site, Pb(2) is bonded in a body-centered cubic geometry to eight equivalent Pb(1) atoms. is represented by the CIF card [CIF]
data_HgPb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.940
_cell_length_b   3.940
_cell_length_c   7.608
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   118.103
_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
  Hg  Hg0  1  0.000  0.000  0.000  1.0
  Pb  Pb1  1  0.500  0.500  0.237  1.0
  Pb  Pb2  1  0.500  0.500  0.763  1.0
  Pb  Pb3  1  0.000  0.000  0.500  1.0
[/CIF]
.
The material structure described by HgPb3 crystallizes in the tetragonal P4/mmm space group. Hg(1) is bonded in a body-centered cubic geometry to eight equivalent Pb(1) atoms. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to four equivalent Hg(1) and four equivalent Pb(2) atoms. In the second Pb site, Pb(2) is bonded in a body-centered cubic geometry to eight equivalent Pb(1) atoms. is represented by the CIF card [CIF]
data_HgPb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.940
_cell_length_b   3.940
_cell_length_c   7.608
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   118.103
_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
  Hg  Hg0  1  0.000  0.000  0.000  1.0
  Pb  Pb1  1  0.500  0.500  0.237  1.0
  Pb  Pb2  1  0.500  0.500  0.763  1.0
  Pb  Pb3  1  0.000  0.000  0.500  1.0
[/CIF]
.