data_TlTePt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.78
_cell_length_b   3.78
_cell_length_c   5.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TlTePt2
_chemical_formula_sum   'Tl1 Te1 Pt2'
_cell_volume   85.67
_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  Tl3  1  0.89  0.89  0.84  1.0
  Te  Te2  1  0.0  0.0  0.49  1.0
  Pt  Pt0  1  0.0  0.0  0.89  1.0
  Pt  Pt1  1  0.89  0.89  0.76  1.0

data_TlTePt2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.35
_cell_length_b   5.35
_cell_length_c   5.99
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   TlTePt2
_chemical_formula_sum   'Tl2 Te2 Pt4'
_cell_volume   171.35
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  0.39  0.5  0.84  1.0
  Te  Te1  2  0.0  0.0  0.49  1.0
  Pt  Pt2  2  0.0  0.0  0.89  1.0
  Pt  Pt3  2  0.39  0.5  0.76  1.0

Tl Te Pt Pt
Tl Te Pt Pt 0 3 o o o 0 2 + + o 1 3 - - o 
Pt2TlTe is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Pt2TlTe clusters. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a single-bond geometry to one Tl(1) atom. The Pt(1)-Tl(1) bond length is 0.66 Å. In the second Pt site, Pt(2) is bonded in a single-bond geometry to one Tl(1) and one Te(1) atom. The Pt(2)-Tl(1) bond length is 0.51 Å. The Pt(2)-Te(1) bond length is 1.72 Å. Tl(1) is bonded in a bent 120 degrees geometry to one Pt(1) and one Pt(2) atom. Te(1) is bonded in a single-bond geometry to one Pt(2) atom.