data_Ta2PtAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.04
_cell_length_b   4.04
_cell_length_c   4.18
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ta2PtAu
_chemical_formula_sum   'Ta2 Pt1 Au1'
_cell_volume   68.14
_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  Ta2  1  0.0  0.02  0.09  1.0
  Ta  Ta3  1  0.02  0.0  0.09  1.0
  Pt  Pt1  1  0.0  0.0  0.0  1.0
  Au  Au0  1  0.02  0.02  0.0  1.0

data_Ta2PtAu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.71
_cell_length_b   5.71
_cell_length_c   4.18
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ta2PtAu
_chemical_formula_sum   'Ta4 Pt2 Au2'
_cell_volume   136.28
_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  0.01  0.01  0.09  1.0
  Pt  Pt1  2  0.0  0.0  0.0  1.0
  Au  Au2  2  0.02  0.0  -0.0  1.0

Ta Ta Pt Au
Ta Ta Pt Au 0 1 o o o 2 3 o o o 
Ta2PtAu is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ta2PtAu clusters. Ta(1) is bonded in a distorted T-shaped geometry to one Ta(1), one Pt(1), and one Au(1) atom. The Ta(1)-Ta(1) bond length is 0.11 Å. The Ta(1)-Pt(1) bond length is 0.38 Å. The Ta(1)-Au(1) bond length is 0.38 Å. Pt(1) is bonded in a distorted single-bond geometry to two equivalent Ta(1) and one Au(1) atom. The Pt(1)-Au(1) bond length is 0.11 Å. Au(1) is bonded in a distorted single-bond geometry to two equivalent Ta(1) and one Pt(1) atom.