The compound described by Li2Tl crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent Li(2) and four equivalent Tl(1) atoms to form a mixture of distorted edge and face-sharing LiLi4Tl4 tetrahedra. In the second Li site, Li(2) is bonded in a 13-coordinate geometry to two equivalent Li(2), four equivalent Li(1), and seven equivalent Tl(1) atoms. Tl(1) is bonded in a 6-coordinate geometry to four equivalent Li(1) and seven equivalent Li(2) atoms. is represented by the CIF file [CIF]
data_Li2Tl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.700
_cell_length_b   4.747
_cell_length_c   5.579
_cell_angle_alpha   90.000
_cell_angle_beta   114.910
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   112.900
_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
  Li  Li0  1  0.242  0.750  0.483  1.0
  Li  Li1  1  0.758  0.250  0.517  1.0
  Li  Li2  1  0.583  0.750  0.167  1.0
  Li  Li3  1  0.417  0.250  0.833  1.0
  Tl  Tl4  1  0.904  0.750  0.808  1.0
  Tl  Tl5  1  0.096  0.250  0.192  1.0
[/CIF]
.
The compound described by Li2Tl crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent Li(2) and four equivalent Tl(1) atoms to form a mixture of distorted edge and face-sharing LiLi4Tl4 tetrahedra. In the second Li site, Li(2) is bonded in a 13-coordinate geometry to two equivalent Li(2), four equivalent Li(1), and seven equivalent Tl(1) atoms. Tl(1) is bonded in a 6-coordinate geometry to four equivalent Li(1) and seven equivalent Li(2) atoms. is represented by the CIF file [CIF]
data_Li2Tl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.700
_cell_length_b   4.747
_cell_length_c   5.579
_cell_angle_alpha   90.000
_cell_angle_beta   114.910
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   112.900
_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
  Li  Li0  1  0.242  0.750  0.483  1.0
  Li  Li1  1  0.758  0.250  0.517  1.0
  Li  Li2  1  0.583  0.750  0.167  1.0
  Li  Li3  1  0.417  0.250  0.833  1.0
  Tl  Tl4  1  0.904  0.750  0.808  1.0
  Tl  Tl5  1  0.096  0.250  0.192  1.0
[/CIF]
.