data_AlZn2Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.85
_cell_length_b   4.85
_cell_length_c   4.85
_cell_angle_alpha   131.82
_cell_angle_beta   131.82
_cell_angle_gamma   70.51
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlZn2Si
_chemical_formula_sum   'Al1 Zn2 Si1'
_cell_volume   61.94
_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
  Zn  Zn2  1  0.0  0.0  0.96  1.0
  Zn  Zn3  1  0.0  0.98  0.98  1.0
  Si  Si1  1  0.98  0.0  0.98  1.0

data_AlZn2Si
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.96
_cell_length_b   3.96
_cell_length_c   4.85
_cell_angle_alpha   114.09
_cell_angle_beta   114.09
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlZn2Si
_chemical_formula_sum   'Al1 Zn2 Si1'
_cell_volume   61.94
_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
  Zn  Zn1  1  0.04  0.0  0.04  1.0
  Zn  Zn2  1  1.0  0.98  1.0  1.0
  Si  Si3  1  0.02  0.0  1.0  1.0

Al Zn Zn Si
Zn2AlSi is Indium-like structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Zn2AlSi cluster. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 2-coordinate geometry to one Zn(2) and one Si(1) atom. The Zn(1)-Zn(2) bond length is 0.19 Å. The Zn(1)-Si(1) bond length is 0.19 Å. In the second Zn site, Zn(2) is bonded in a distorted single-bond geometry to one Zn(1) and one Al(1) atom. The Zn(2)-Al(1) bond length is 0.09 Å. Al(1) is bonded in an L-shaped geometry to one Zn(2) and one Si(1) atom. The Al(1)-Si(1) bond length is 0.09 Å. Si(1) is bonded in a distorted single-bond geometry to one Zn(1) and one Al(1) atom.