data_TcPbAu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.66
_cell_length_b   4.66
_cell_length_c   4.66
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TcPbAu
_chemical_formula_sum   'Tc1 Pb1 Au1'
_cell_volume   71.54
_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
  Tc  Tc2  1  0.0  0.0  0.0  1.0
  Pb  Pb1  1  0.29  0.29  0.29  1.0
  Au  Au0  1  0.94  0.94  0.94  1.0

data_TcPbAu
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.66
_cell_length_b   4.66
_cell_length_c   11.41
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   TcPbAu
_chemical_formula_sum   'Tc3 Pb3 Au3'
_cell_volume   214.62
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Tc  Tc0  3  0.0  0.0  0.0  1.0
  Pb  Pb1  3  0.0  0.0  0.71  1.0
  Au  Au2  3  0.0  0.0  0.06  1.0

Tc Pb Au
Tc Pb Au 0 2 - - - 0 1 o o - 0 1 o - o 0 1 - o o 1 2 - - o 1 2 - o - 1 2 o - - 
TcAuPb crystallizes in the trigonal R3m space group. Tc(1) is bonded in a single-bond geometry to one Au(1) and four equivalent Pb(1) atoms. The Tc(1)-Au(1) bond length is 0.66 Å. There are three shorter (2.73 Å) and one longer (3.37 Å) Tc(1)-Pb(1) bond length. Au(1) is bonded in a single-bond geometry to one Tc(1) and three equivalent Pb(1) atoms. All Au(1)-Pb(1) bond lengths are 2.70 Å. Pb(1) is bonded to four equivalent Tc(1) and three equivalent Au(1) atoms to form a mixture of edge and corner-sharing PbTc4Au3 hexagonal pyramids.