data_TlB4Te
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.9
_cell_length_b   4.9
_cell_length_c   4.9
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   TlB4Te
_chemical_formula_sum   'Tl1 B4 Te1'
_cell_volume   83.31
_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  Tl5  1  0.73  0.73  0.73  1.0
  B  B0  1  0.6  0.6  0.33  1.0
  B  B1  1  0.6  0.33  0.6  1.0
  B  B2  1  0.33  0.6  0.6  1.0
  B  B3  1  0.33  0.33  0.33  1.0
  Te  Te4  1  0.0  0.0  0.0  1.0

data_TlB4Te
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.9
_cell_length_b   4.9
_cell_length_c   12.01
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   TlB4Te
_chemical_formula_sum   'Tl3 B12 Te3'
_cell_volume   249.92
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.27  1.0
  B  B1  9  0.18  0.09  0.49  1.0
  B  B2  3  0.0  0.0  0.67  1.0
  Te  Te3  3  0.0  0.0  0.0  1.0

Tl B B B B Te
TlB4Te crystallizes in the trigonal R3m space group. Tl(1) is bonded in a 3-coordinate geometry to three equivalent B(1), three equivalent B(2), and four equivalent Te(1) atoms. All Tl(1)-B(1) bond lengths are 2.47 Å. All Tl(1)-B(2) bond lengths are 2.94 Å. There are three shorter (2.94 Å) and one longer (3.20 Å) Tl(1)-Te(1) bond length. There are two inequivalent B sites. In the first B site, B(1) is bonded in a 3-coordinate geometry to one Tl(1), one B(2), two equivalent B(1), and one Te(1) atom. The B(1)-B(2) bond length is 2.26 Å. Both B(1)-B(1) bond lengths are 1.30 Å. The B(1)-Te(1) bond length is 2.80 Å. In the second B site, B(2) is bonded in a 9-coordinate geometry to three equivalent Tl(1), three equivalent B(1), and three equivalent Te(1) atoms. All B(2)-Te(1) bond lengths are 2.83 Å. Te(1) is bonded in a 10-coordinate geometry to four equivalent Tl(1), three equivalent B(1), and three equivalent B(2) atoms.