data_Ta2AlZn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.86
_cell_length_b   4.86
_cell_length_c   2.8
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2AlZn
_chemical_formula_sum   'Ta2 Al1 Zn1'
_cell_volume   66.09
_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
  Ta  Ta1  1  0.0  0.43  0.4  1.0
  Ta  Ta2  1  0.43  0.0  0.4  1.0
  Al  Al0  1  0.0  0.0  0.0  1.0
  Zn  Zn3  1  0.43  0.43  0.0  1.0

data_Ta2AlZn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.88
_cell_length_b   6.88
_cell_length_c   2.8
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ta2AlZn
_chemical_formula_sum   'Ta4 Al2 Zn2'
_cell_volume   132.19
_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
  Ta  Ta0  4  0.22  0.22  0.4  1.0
  Al  Al1  2  0.0  0.0  0.0  1.0
  Zn  Zn2  2  0.43  0.0  0.0  1.0

Ta Ta Al Zn
Ta Ta Al Zn 0 3 - o o 0 3 o o o 0 3 o o + 0 2 o o o 0 2 o o + 0 2 o + o 0 1 o o o 0 0 o o + 1 2 o o o 1 2 o o + 1 2 + o o 1 3 o - o 1 3 o o o 1 3 o o + 1 1 o o + 2 2 o o + 2 3 o o o 3 3 o o + 
Ta2ZnAl crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ta2ZnAl clusters. Ta(1) is bonded in a 2-coordinate geometry to one Zn(1) and one Al(1) atom. The Ta(1)-Zn(1) bond length is 2.37 Å. The Ta(1)-Al(1) bond length is 2.37 Å. Zn(1) is bonded in a 2-coordinate geometry to two equivalent Ta(1) atoms. Al(1) is bonded in a 2-coordinate geometry to two equivalent Ta(1) atoms.