data_Al2CuW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.75
_cell_length_b   2.75
_cell_length_c   7.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2CuW
_chemical_formula_sum   'Al2 Cu1 W1'
_cell_volume   57.67
_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  0.38  0.38  0.83  1.0
  Al  Al1  1  0.38  0.38  0.77  1.0
  Cu  Cu2  1  0.0  0.0  0.0  1.0
  W  W3  1  0.0  0.0  0.8  1.0

data_Al2CuW
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.89
_cell_length_b   3.89
_cell_length_c   7.6
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Al2CuW
_chemical_formula_sum   'Al4 Cu2 W2'
_cell_volume   115.34
_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  0.38  0.0  0.77  1.0
  Al  Al1  2  0.38  0.0  0.83  1.0
  Cu  Cu2  2  0.0  0.0  0.0  1.0
  W  W3  2  0.0  0.0  0.8  1.0

Al Al Cu W
Al Al Cu W 0 1 o o o 0 3 o o o 1 3 o o o 2 3 o o - 
WCuAl2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two WCuAl2 clusters. W(1) is bonded in a 2-coordinate geometry to one Cu(1) and one Al(1) atom. The W(1)-Cu(1) bond length is 1.51 Å. The W(1)-Al(1) bond length is 1.49 Å. Cu(1) is bonded in a distorted single-bond geometry to one W(1) atom. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted single-bond geometry to one W(1) and one Al(2) atom. The Al(1)-Al(2) bond length is 0.46 Å. In the second Al site, Al(2) is bonded in a single-bond geometry to one Al(1) atom.