data_Al(CuNi4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.52
_cell_length_b   3.52
_cell_length_c   10.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al(CuNi4)2
_chemical_formula_sum   'Al1 Cu2 Ni8'
_cell_volume   129.21
_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
  Cu  Cu1  1  0.0  0.0  0.45  1.0
  Cu  Cu2  1  0.0  0.0  0.01  1.0
  Ni  Ni3  1  0.0  0.76  0.23  1.0
  Ni  Ni4  1  0.76  0.0  0.23  1.0
  Ni  Ni5  1  0.76  0.76  0.45  1.0
  Ni  Ni6  1  0.76  0.76  0.01  1.0
  Ni  Ni7  1  0.0  0.76  0.67  1.0
  Ni  Ni8  1  0.76  0.0  0.67  1.0
  Ni  Ni9  1  0.0  0.76  0.78  1.0
  Ni  Ni10  1  0.76  0.0  0.78  1.0

data_Al(CuNi4)2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.97
_cell_length_b   4.97
_cell_length_c   10.45
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Al(CuNi4)2
_chemical_formula_sum   'Al2 Cu4 Ni16'
_cell_volume   258.41
_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
  Cu  Cu1  2  0.0  0.0  0.01  1.0
  Cu  Cu2  2  0.0  0.0  0.45  1.0
  Ni  Ni3  4  0.38  0.38  0.23  1.0
  Ni  Ni4  4  0.38  0.38  0.67  1.0
  Ni  Ni5  4  0.38  0.38  0.78  1.0
  Ni  Ni6  2  0.26  0.5  0.01  1.0
  Ni  Ni7  2  0.26  0.5  0.45  1.0

Al Cu Cu Ni Ni Ni Ni Ni Ni Ni Ni
Al Cu Cu Ni Ni Ni Ni Ni Ni Ni Ni 0 2 o o o 0 6 - - o 1 5 - - o 2 6 - - o 3 4 - + o 7 8 - + o 7 9 o o o 8 10 o o o 9 10 - + o 
(Ni)6NiCuCuAlNi crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two CuAlNi clusters, four Ni clusters, and two NiCu clusters. In each CuAlNi cluster, Ni(3) is bonded in a 2-coordinate geometry to one Cu(2) and one Al(1) atom. The Ni(3)-Cu(2) bond length is 1.20 Å. The Ni(3)-Al(1) bond length is 1.21 Å. Cu(2) is bonded in a single-bond geometry to one Ni(3) and one Al(1) atom. The Cu(2)-Al(1) bond length is 0.05 Å. Al(1) is bonded in a single-bond geometry to one Ni(3) and one Cu(2) atom. In two of the Ni clusters, Ni(1) is bonded in a single-bond geometry to one Ni(1) atom. The Ni(1)-Ni(1) bond length is 1.20 Å. In two of the Ni clusters, there are two inequivalent Ni sites. In the first Ni site, Ni(4) is bonded in an L-shaped geometry to one Ni(4) and one Ni(5) atom. The Ni(4)-Ni(4) bond length is 1.20 Å. The Ni(4)-Ni(5) bond length is 1.11 Å. In the second Ni site, Ni(5) is bonded in a distorted L-shaped geometry to one Ni(4) and one Ni(5) atom. The Ni(5)-Ni(5) bond length is 1.20 Å. In each NiCu cluster, Ni(2) is bonded in a single-bond geometry to one Cu(1) atom. The Ni(2)-Cu(1) bond length is 1.20 Å. Cu(1) is bonded in a single-bond geometry to one Ni(2) atom.