The structure described by TmTlTe2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Tm(1) is bonded to six equivalent Te(1) atoms to form TmTe6 octahedra that share corners with six equivalent Tl(1)Te6 octahedra, edges with six equivalent Tm(1)Te6 octahedra, and edges with six equivalent Tl(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 9°. Tl(1) is bonded to six equivalent Te(1) atoms to form distorted TlTe6 octahedra that share corners with six equivalent Tm(1)Te6 octahedra, edges with six equivalent Tm(1)Te6 octahedra, and edges with six equivalent Tl(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 9°. Te(1) is bonded to three equivalent Tm(1) and three equivalent Tl(1) atoms to form a mixture of distorted corner and edge-sharing TeTm3Tl3 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_TmTlTe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.406
_cell_length_b   4.406
_cell_length_c   8.515
_cell_angle_alpha   75.005
_cell_angle_beta   75.005
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   136.604
_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
  Tm  Tm0  1  0.500  0.500  0.500  1.0
  Tl  Tl1  1  0.000  0.000  0.000  1.0
  Te  Te2  1  0.763  0.763  0.710  1.0
  Te  Te3  1  0.237  0.237  0.290  1.0
[/CIF]
.
The structure described by TmTlTe2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. Tm(1) is bonded to six equivalent Te(1) atoms to form TmTe6 octahedra that share corners with six equivalent Tl(1)Te6 octahedra, edges with six equivalent Tm(1)Te6 octahedra, and edges with six equivalent Tl(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 9°. Tl(1) is bonded to six equivalent Te(1) atoms to form distorted TlTe6 octahedra that share corners with six equivalent Tm(1)Te6 octahedra, edges with six equivalent Tm(1)Te6 octahedra, and edges with six equivalent Tl(1)Te6 octahedra. The corner-sharing octahedral tilt angles are 9°. Te(1) is bonded to three equivalent Tm(1) and three equivalent Tl(1) atoms to form a mixture of distorted corner and edge-sharing TeTm3Tl3 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_TmTlTe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.406
_cell_length_b   4.406
_cell_length_c   8.515
_cell_angle_alpha   75.005
_cell_angle_beta   75.005
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   136.604
_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
  Tm  Tm0  1  0.500  0.500  0.500  1.0
  Tl  Tl1  1  0.000  0.000  0.000  1.0
  Te  Te2  1  0.763  0.763  0.710  1.0
  Te  Te3  1  0.237  0.237  0.290  1.0
[/CIF]
.