data_Ta3Zn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.79
_cell_length_b   5.79
_cell_length_c   4.77
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta3Zn
_chemical_formula_sum   'Ta6 Zn2'
_cell_volume   138.52
_cell_formula_units_Z   2
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  Ta0  1  0.0  0.67  0.58  1.0
  Ta  Ta1  1  0.45  0.18  0.58  1.0
  Ta  Ta2  1  0.55  0.18  0.58  1.0
  Ta  Ta3  1  0.9  0.35  0.19  1.0
  Ta  Ta4  1  0.45  0.83  0.19  1.0
  Ta  Ta5  1  0.35  0.83  0.19  1.0
  Zn  Zn6  1  0.0  0.34  0.19  1.0
  Zn  Zn7  1  0.9  0.67  0.58  1.0

data_Ta3Zn
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.77
_cell_length_b   5.79
_cell_length_c   5.79
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   Ta3Zn
_chemical_formula_sum   'Ta6 Zn2'
_cell_volume   138.52
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  Ta0  2  0.19  0.0  0.17  1.0
  Ta  Ta1  2  0.19  0.1  0.17  1.0
  Ta  Ta2  2  0.19  0.55  0.66  1.0
  Zn  Zn3  2  0.19  0.45  0.66  1.0

Ta Ta Ta Ta Ta Ta Zn Zn
(Ta)2TaZn is alpha carbon monoxide-like structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two Ta clusters and two TaZn clusters. In each Ta cluster, there are two inequivalent Ta sites. In the first Ta site, Ta(2) is bonded in a single-bond geometry to one Ta(3) atom. The Ta(2)-Ta(3) bond length is 0.57 Å. In the second Ta site, Ta(3) is bonded in a single-bond geometry to one Ta(2) atom. In each TaZn cluster, Ta(1) is bonded in a single-bond geometry to one Zn(1) atom. The Ta(1)-Zn(1) bond length is 0.61 Å. Zn(1) is bonded in a single-bond geometry to one Ta(1) atom.