The compound described by Cu2TlTe2 crystallizes in the tetragonal I4/mmm space group. Cu(1) is bonded to four equivalent Te(1) atoms to form a mixture of distorted edge and corner-sharing CuTe4 tetrahedra. Tl(1) is bonded in a distorted body-centered cubic geometry to eight equivalent Te(1) atoms. Te(1) is bonded in a 4-coordinate geometry to four equivalent Cu(1) and four equivalent Tl(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tl(CuTe)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.016
_cell_length_b   4.016
_cell_length_c   8.233
_cell_angle_alpha   104.116
_cell_angle_beta   104.116
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   124.612
_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  Tl0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.750  0.250  0.500  1.0
  Cu  Cu2  1  0.250  0.750  0.500  1.0
  Te  Te3  1  0.642  0.642  0.283  1.0
  Te  Te4  1  0.358  0.358  0.717  1.0
[/CIF]
.
The compound described by Cu2TlTe2 crystallizes in the tetragonal I4/mmm space group. Cu(1) is bonded to four equivalent Te(1) atoms to form a mixture of distorted edge and corner-sharing CuTe4 tetrahedra. Tl(1) is bonded in a distorted body-centered cubic geometry to eight equivalent Te(1) atoms. Te(1) is bonded in a 4-coordinate geometry to four equivalent Cu(1) and four equivalent Tl(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Tl(CuTe)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.016
_cell_length_b   4.016
_cell_length_c   8.233
_cell_angle_alpha   104.116
_cell_angle_beta   104.116
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   124.612
_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  Tl0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.750  0.250  0.500  1.0
  Cu  Cu2  1  0.250  0.750  0.500  1.0
  Te  Te3  1  0.642  0.642  0.283  1.0
  Te  Te4  1  0.358  0.358  0.717  1.0
[/CIF]
.