data_TlW2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.74
_cell_length_b   5.74
_cell_length_c   6.95
_cell_angle_alpha   103.88
_cell_angle_beta   103.88
_cell_angle_gamma   30.67
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TlW2
_chemical_formula_sum   'Tl2 W4'
_cell_volume   113.04
_cell_formula_units_Z   2
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  Tl0  1  0.48  0.0  0.3  1.0
  Tl  Tl1  1  0.86  0.0  0.43  1.0
  W  W2  1  0.95  0.0  0.92  1.0
  W  W3  1  0.39  0.0  0.8  1.0
  W  W4  1  0.93  0.0  0.52  1.0
  W  W5  1  0.41  0.0  0.21  1.0

data_TlW2
_symmetry_space_group_name_H-M   P-1
_cell_length_a   3.04
_cell_length_b   5.74
_cell_length_c   6.95
_cell_angle_alpha   103.88
_cell_angle_beta   90.0
_cell_angle_gamma   105.33
_symmetry_Int_Tables_number   2
_chemical_formula_structural   TlW2
_chemical_formula_sum   'Tl2 W4'
_cell_volume   113.04
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  Tl0  2  0.0  0.19  0.56  1.0
  W  W1  2  0.0  0.26  0.66  1.0
  W  W2  2  0.0  0.28  0.06  1.0

Tl Tl W W W W
W2Tl crystallizes in the triclinic P-1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 7-coordinate geometry to two equivalent W(2), four equivalent W(1), and one Tl(1) atom. There is one shorter (2.79 Å) and one longer (2.88 Å) W(1)-W(2) bond length. There are a spread of W(1)-W(1) bond distances ranging from 2.82-3.15 Å. The W(1)-Tl(1) bond length is 3.67 Å. In the second W site, W(2) is bonded in a single-bond geometry to two equivalent W(1) and one Tl(1) atom. The W(2)-Tl(1) bond length is 0.67 Å. Tl(1) is bonded in a single-bond geometry to one W(1) and one W(2) atom.