data_GaHg2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.69
_cell_length_b   5.69
_cell_length_c   3.4
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   109.66
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaHg2Pb
_chemical_formula_sum   'Ga1 Hg2 Pb1'
_cell_volume   103.75
_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
  Ga  Ga0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.64  0.33  0.7  1.0
  Hg  Hg2  1  0.64  0.67  0.7  1.0
  Pb  Pb3  1  0.28  0.0  0.0  1.0

data_GaHg2Pb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.4
_cell_length_b   5.69
_cell_length_c   5.69
_cell_angle_alpha   109.66
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaHg2Pb
_chemical_formula_sum   'Ga1 Hg2 Pb1'
_cell_volume   103.75
_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
  Ga  Ga0  1  0.0  0.0  0.0  1.0
  Hg  Hg1  1  0.7  0.64  0.33  1.0
  Hg  Hg2  1  0.7  0.64  0.67  1.0
  Pb  Pb3  1  0.0  0.28  0.0  1.0

Ga Hg Hg Pb
Hg2GaPb crystallizes in the triclinic P1 space group. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a 3-coordinate geometry to one Hg(2) and two equivalent Pb(1) atoms. The Hg(1)-Hg(2) bond length is 1.97 Å. There is one shorter (2.48 Å) and one longer (3.28 Å) Hg(1)-Pb(1) bond length. In the second Hg site, Hg(2) is bonded in a 3-coordinate geometry to one Hg(1), one Ga(1), and one Pb(1) atom. The Hg(2)-Ga(1) bond length is 2.48 Å. The Hg(2)-Pb(1) bond length is 3.36 Å. Ga(1) is bonded in a distorted bent 120 degrees geometry to one Hg(2) and one Pb(1) atom. The Ga(1)-Pb(1) bond length is 1.59 Å. Pb(1) is bonded in a 2-coordinate geometry to one Hg(2), two equivalent Hg(1), and one Ga(1) atom.