data_AlAs2Au
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.12
_cell_length_b   5.12
_cell_length_c   2.84
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlAs2Au
_chemical_formula_sum   'Al1 As2 Au1'
_cell_volume   74.25
_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
  Al  Al0  1  0.0  0.0  0.0  1.0
  As  As1  1  0.0  0.56  0.42  1.0
  As  As2  1  0.56  0.0  0.42  1.0
  Au  Au3  1  0.56  0.56  0.0  1.0

data_AlAs2Au
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.24
_cell_length_b   7.24
_cell_length_c   2.84
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   AlAs2Au
_chemical_formula_sum   'Al2 As4 Au2'
_cell_volume   148.51
_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
  Al  Al0  2  0.0  0.0  0.0  1.0
  As  As1  4  0.28  0.28  0.42  1.0
  Au  Au2  2  0.06  0.5  0.0  1.0

Al As As Au
AuAlAs2 crystallizes in the monoclinic Cm space group. Au(1) is bonded in a 6-coordinate geometry to eight equivalent As(1) atoms. There are a spread of Au(1)-As(1) bond distances ranging from 2.55-3.30 Å. Al(1) is bonded in a 4-coordinate geometry to six equivalent As(1) atoms. There are a spread of Al(1)-As(1) bond distances ranging from 2.55-3.09 Å. As(1) is bonded in a 9-coordinate geometry to four equivalent Au(1), three equivalent Al(1), and two equivalent As(1) atoms. Both As(1)-As(1) bond lengths are 2.84 Å.