data_TcPPb3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.29
_cell_length_b   5.29
_cell_length_c   5.29
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TcPPb3
_chemical_formula_sum   'Tc1 P1 Pb3'
_cell_volume   148.33
_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  Tc4  1  0.65  0.65  0.65  1.0
  P  P3  1  0.0  0.0  0.0  1.0
  Pb  Pb0  1  0.65  0.0  0.65  1.0
  Pb  Pb1  1  0.65  0.65  0.0  1.0
  Pb  Pb2  1  0.0  0.65  0.65  1.0

data_TcPPb3
_symmetry_space_group_name_H-M   R3m
_cell_length_a   7.49
_cell_length_b   7.49
_cell_length_c   9.17
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   TcPPb3
_chemical_formula_sum   'Tc3 P3 Pb9'
_cell_volume   444.98
_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  0.65  1.0
  P  P1  3  0.0  0.0  0.0  1.0
  Pb  Pb2  9  0.22  0.43  0.43  1.0

Tc P Pb Pb Pb
Tc P Pb Pb Pb 0 4 + o o 0 2 o + o 0 3 o o + 1 3 - - o 1 2 - o - 1 4 o - - 
TcPb3P is alpha Po structured and crystallizes in the trigonal R3m space group. The structure is zero-dimensional and consists of three TcPb3P clusters. Tc(1) is bonded in a 3-coordinate geometry to three equivalent Pb(1) atoms. All Tc(1)-Pb(1) bond lengths are 1.87 Å. Pb(1) is bonded in a distorted single-bond geometry to one Tc(1) and one P(1) atom. The Pb(1)-P(1) bond length is 2.64 Å. P(1) is bonded in a 3-coordinate geometry to three equivalent Pb(1) atoms.