data_Ga2SiPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.12
_cell_length_b   4.49
_cell_length_c   4.72
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ga2SiPb
_chemical_formula_sum   'Ga2 Si1 Pb1'
_cell_volume   87.18
_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  0.24  0.36  1.0
  Ga  Ga1  1  0.06  0.24  0.0  1.0
  Si  Si3  1  0.0  0.0  0.0  1.0
  Pb  Pb2  1  0.06  0.0  0.36  1.0

data_Ga2SiPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.12
_cell_length_b   4.49
_cell_length_c   4.72
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ga2SiPb
_chemical_formula_sum   'Ga2 Si1 Pb1'
_cell_volume   87.18
_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  0.24  0.36  1.0
  Ga  Ga1  1  0.06  0.24  -0.0  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.06  0.0  0.36  1.0

Ga Ga Si Pb
Ga2PbSi is alpha Po structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Ga2PbSi cluster. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a single-bond geometry to one Pb(1) atom. The Ga(1)-Pb(1) bond length is 1.12 Å. In the second Ga site, Ga(2) is bonded in a distorted single-bond geometry to one Si(1) atom. The Ga(2)-Si(1) bond length is 1.12 Å. Pb(1) is bonded in a distorted single-bond geometry to one Ga(1) and one Si(1) atom. The Pb(1)-Si(1) bond length is 1.72 Å. Si(1) is bonded in a distorted L-shaped geometry to one Ga(2) and one Pb(1) atom.