data_NaAl2Zn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.19
_cell_length_b   10.19
_cell_length_c   10.19
_cell_angle_alpha   16.57
_cell_angle_beta   16.57
_cell_angle_gamma   16.57
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaAl2Zn
_chemical_formula_sum   'Na1 Al2 Zn1'
_cell_volume   74.97
_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
  Na  Na2  1  0.0  0.0  0.0  1.0
  Al  Al0  1  0.0  0.0  0.3  1.0
  Al  Al1  1  0.0  0.0  0.84  1.0
  Zn  Zn3  1  0.0  0.0  0.07  1.0

data_NaAl2Zn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.08
_cell_length_b   2.94
_cell_length_c   10.19
_cell_angle_alpha   90.0
_cell_angle_beta   99.58
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaAl2Zn
_chemical_formula_sum   'Na2 Al4 Zn2'
_cell_volume   149.95
_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
  Na  Na0  2  0.0  0.0  0.0  1.0
  Al  Al1  2  0.0  0.0  0.16  1.0
  Al  Al2  2  0.0  0.0  0.7  1.0
  Zn  Zn3  2  0.0  0.0  0.93  1.0

Na Al Al Zn
NaZnAl2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two NaZnAl2 clusters. Na(1) is bonded in a distorted linear geometry to one Zn(1) and one Al(2) atom. The Na(1)-Zn(1) bond length is 0.70 Å. The Na(1)-Al(2) bond length is 1.67 Å. Zn(1) is bonded in a single-bond geometry to one Na(1) and one Al(1) atom. The Zn(1)-Al(1) bond length is 2.37 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted single-bond geometry to one Zn(1) atom. In the second Al site, Al(2) is bonded in a single-bond geometry to one Na(1) atom.