data_Al2HgB
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.74
_cell_length_b   3.44
_cell_length_c   7.5
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2HgB
_chemical_formula_sum   'Al2 Hg1 B1'
_cell_volume   70.7
_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
  Al  Al0  1  0.0  0.0  0.25  1.0
  Al  Al1  1  0.37  0.72  0.61  1.0
  Hg  Hg3  1  0.37  0.72  0.79  1.0
  B  B2  1  0.0  0.0  0.1  1.0

data_Al2HgB
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.74
_cell_length_b   3.44
_cell_length_c   7.5
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2HgB
_chemical_formula_sum   'Al2 Hg1 B1'
_cell_volume   70.7
_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
  Al  Al0  1  0.0  0.0  0.25  1.0
  Al  Al1  1  0.37  0.72  0.61  1.0
  Hg  Hg2  1  0.37  0.72  0.79  1.0
  B  B3  1  0.0  0.0  0.1  1.0

Al Al Hg B
Al Al Hg B 0 3 o o o 1 2 o o o 
AlHgAlB is Cubic alpha N2-derived structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one alumanylidyneborane molecule and one AlHg cluster. In the AlHg cluster, Hg(1) is bonded in a single-bond geometry to one Al(2) atom. The Hg(1)-Al(2) bond length is 1.33 Å. Al(2) is bonded in a single-bond geometry to one Hg(1) atom.