data_Tl2PbW
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.78
_cell_length_b   5.78
_cell_length_c   5.78
_cell_angle_alpha   134.91
_cell_angle_beta   134.91
_cell_angle_gamma   65.67
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Tl2PbW
_chemical_formula_sum   'Tl2 Pb1 W1'
_cell_volume   95.51
_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
  Tl  Tl1  1  0.0  0.22  0.43  1.0
  Tl  Tl2  1  0.22  0.0  0.43  1.0
  Pb  Pb0  1  0.0  0.0  0.86  1.0
  W  W3  1  0.0  0.0  0.0  1.0

data_Tl2PbW
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.27
_cell_length_b   6.27
_cell_length_c   5.78
_cell_angle_alpha   90.0
_cell_angle_beta   122.84
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Tl2PbW
_chemical_formula_sum   'Tl4 Pb2 W2'
_cell_volume   191.02
_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
  Tl  Tl0  4  0.39  0.39  0.21  1.0
  Pb  Pb1  2  0.0  0.0  0.86  1.0
  W  W2  2  0.0  0.0  0.0  1.0

Tl Tl Pb W
WTl2Pb is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two WTl2Pb clusters. W(1) is bonded in a 3-coordinate geometry to two equivalent Tl(1) and one Pb(1) atom. Both W(1)-Tl(1) bond lengths are 1.83 Å. The W(1)-Pb(1) bond length is 0.82 Å. Tl(1) is bonded in a 2-coordinate geometry to one W(1) and one Tl(1) atom. The Tl(1)-Tl(1) bond length is 1.36 Å. Pb(1) is bonded in a single-bond geometry to one W(1) atom.