data_TlTeSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.35
_cell_length_b   4.35
_cell_length_c   5.3
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TlTeSe
_chemical_formula_sum   'Tl1 Te1 Se1'
_cell_volume   86.94
_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  Tl2  1  0.18  0.26  0.61  1.0
  Te  Te1  1  0.0  0.51  0.77  1.0
  Se  Se0  1  0.0  0.0  0.22  1.0

data_TlTeSe
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.35
_cell_length_b   4.35
_cell_length_c   5.3
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TlTeSe
_chemical_formula_sum   'Tl1 Te1 Se1'
_cell_volume   86.94
_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  0.18  0.26  0.61  1.0
  Te  Te1  1  -0.0  0.51  0.77  1.0
  Se  Se2  1  0.0  0.0  0.22  1.0

Tl Te Se
TlSeTe is Hg_xSn structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one TlSeTe cluster. Tl(1) is bonded in a distorted bent 120 degrees geometry to one Te(1) and one Se(1) atom. The Tl(1)-Te(1) bond length is 1.83 Å. The Tl(1)-Se(1) bond length is 2.32 Å. Te(1) is bonded in a distorted single-bond geometry to one Tl(1) atom. Se(1) is bonded in a distorted single-bond geometry to one Tl(1) atom.