data_GaGeAu2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.39
_cell_length_b   3.39
_cell_length_c   6.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   GaGeAu2
_chemical_formula_sum   'Ga1 Ge1 Au2'
_cell_volume   75.7
_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  Ga2  1  0.0  0.0  0.11  1.0
  Ge  Ge3  1  0.69  0.69  0.1  1.0
  Au  Au0  1  0.0  0.0  0.51  1.0
  Au  Au1  1  0.69  0.69  0.76  1.0

data_GaGeAu2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.79
_cell_length_b   4.79
_cell_length_c   6.59
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   GaGeAu2
_chemical_formula_sum   'Ga2 Ge2 Au4'
_cell_volume   151.4
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.0  0.0  0.11  1.0
  Ge  Ge1  2  0.19  0.5  0.1  1.0
  Au  Au2  2  0.0  0.0  0.51  1.0
  Au  Au3  2  0.19  0.5  0.76  1.0

Ga Ge Au Au
Au2GaGe crystallizes in the monoclinic Cm space group. There are two inequivalent Au sites. In the first Au site, Au(1) is bonded in a 2-coordinate geometry to one Au(2) and one Ga(1) atom. The Au(1)-Au(2) bond length is 2.21 Å. The Au(1)-Ga(1) bond length is 2.63 Å. In the second Au site, Au(2) is bonded in a 1-coordinate geometry to one Au(1) and one Ge(1) atom. The Au(2)-Ge(1) bond length is 2.25 Å. Ga(1) is bonded in a 1-coordinate geometry to one Au(1) and three equivalent Ge(1) atoms. There is one shorter (1.46 Å) and two longer (2.57 Å) Ga(1)-Ge(1) bond lengths. Ge(1) is bonded in a 4-coordinate geometry to one Au(2) and three equivalent Ga(1) atoms.