data_Al4In
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.86
_cell_length_b   6.86
_cell_length_c   6.86
_cell_angle_alpha   145.63
_cell_angle_beta   145.63
_cell_angle_gamma   49.39
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al4In
_chemical_formula_sum   'Al4 In1'
_cell_volume   102.49
_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  0.03  0.0  0.12  1.0
  Al  Al1  1  0.0  0.03  0.12  1.0
  Al  Al2  1  0.0  0.0  0.54  1.0
  Al  Al3  1  0.0  0.0  0.92  1.0
  In  In4  1  0.0  0.0  0.0  1.0

data_Al4In
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.73
_cell_length_b   5.73
_cell_length_c   6.86
_cell_angle_alpha   90.0
_cell_angle_beta   114.7
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Al4In
_chemical_formula_sum   'Al8 In2'
_cell_volume   204.98
_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  4  0.1  0.01  0.09  1.0
  Al  Al1  2  0.04  0.5  0.54  1.0
  Al  Al2  2  0.42  0.5  0.92  1.0
  In  In3  2  0.0  0.0  0.0  1.0

Al Al Al Al In
InAl4 is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two InAl4 clusters. In(1) is bonded in a 3-coordinate geometry to one Al(3) and two equivalent Al(1) atoms. The In(1)-Al(3) bond length is 0.52 Å. Both In(1)-Al(1) bond lengths are 0.66 Å. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted L-shaped geometry to one In(1) and one Al(1) atom. The Al(1)-Al(1) bond length is 0.16 Å. In the second Al site, Al(2) is bonded in a single-bond geometry to one Al(3) atom. The Al(2)-Al(3) bond length is 2.61 Å. In the third Al site, Al(3) is bonded in a single-bond geometry to one In(1) and one Al(2) atom.