data_Ba2TcAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.73
_cell_length_b   5.73
_cell_length_c   5.73
_cell_angle_alpha   124.55
_cell_angle_beta   124.55
_cell_angle_gamma   82.29
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ba2TcAu
_chemical_formula_sum   'Ba2 Tc1 Au1'
_cell_volume   122.51
_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
  Ba  Ba1  1  0.0  0.66  0.16  1.0
  Ba  Ba2  1  0.66  0.0  0.16  1.0
  Tc  Tc3  1  0.0  0.0  0.0  1.0
  Au  Au0  1  0.0  0.0  0.31  1.0

data_Ba2TcAu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.54
_cell_length_b   7.54
_cell_length_c   5.73
_cell_angle_alpha   90.0
_cell_angle_beta   131.15
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Ba2TcAu
_chemical_formula_sum   'Ba4 Tc2 Au2'
_cell_volume   245.02
_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
  Ba  Ba0  4  0.18  0.33  0.51  1.0
  Tc  Tc1  2  0.0  0.0  0.0  1.0
  Au  Au2  2  0.19  0.5  0.69  1.0

Ba Ba Tc Au
Ba2TcAu is Copper structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Ba2TcAu clusters. Ba(1) is bonded in a single-bond geometry to one Au(1) atom. The Ba(1)-Au(1) bond length is 1.59 Å. Tc(1) is bonded in a distorted single-bond geometry to one Au(1) atom. The Tc(1)-Au(1) bond length is 1.79 Å. Au(1) is bonded in a 3-coordinate geometry to two equivalent Ba(1) and one Tc(1) atom.