The compound described by Tl is alpha Samarium structured and crystallizes in the trigonal R-3m space group. There are four inequivalent Tl sites. In the first Tl site, Tl(1) is bonded to six equivalent Tl(1) and six Tl(2,2) atoms to form a mixture of corner, edge, and face-sharing TlTl12 cuboctahedra. In the second Tl site, Tl(2) is bonded to three equivalent Tl(1) and nine Tl(2,2) atoms to form a mixture of corner, edge, and face-sharing TlTl12 cuboctahedra. In the third Tl site, Tl(2) is bonded to three equivalent Tl(1) and nine Tl(2,2) atoms to form a mixture of corner, edge, and face-sharing TlTl12 cuboctahedra. In the fourth Tl site, Tl(2) is bonded to three equivalent Tl(1) and nine Tl(2,2) atoms to form a mixture of corner, edge, and face-sharing TlTl12 cuboctahedra. is represented by the CIF file [CIF]
data_Tl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.562
_cell_length_b   3.562
_cell_length_c   8.493
_cell_angle_alpha   77.895
_cell_angle_beta   102.105
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   90.551
_cell_formula_units_Z   3
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
  Tl  Tl1  1  0.779  0.221  0.337  1.0
  Tl  Tl2  1  0.221  0.779  0.663  1.0
[/CIF]
.
The compound described by Tl is alpha Samarium structured and crystallizes in the trigonal R-3m space group. There are four inequivalent Tl sites. In the first Tl site, Tl(1) is bonded to six equivalent Tl(1) and six Tl(2,2) atoms to form a mixture of corner, edge, and face-sharing TlTl12 cuboctahedra. In the second Tl site, Tl(2) is bonded to three equivalent Tl(1) and nine Tl(2,2) atoms to form a mixture of corner, edge, and face-sharing TlTl12 cuboctahedra. In the third Tl site, Tl(2) is bonded to three equivalent Tl(1) and nine Tl(2,2) atoms to form a mixture of corner, edge, and face-sharing TlTl12 cuboctahedra. In the fourth Tl site, Tl(2) is bonded to three equivalent Tl(1) and nine Tl(2,2) atoms to form a mixture of corner, edge, and face-sharing TlTl12 cuboctahedra. is represented by the CIF file [CIF]
data_Tl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.562
_cell_length_b   3.562
_cell_length_c   8.493
_cell_angle_alpha   77.895
_cell_angle_beta   102.105
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   90.551
_cell_formula_units_Z   3
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
  Tl  Tl1  1  0.779  0.221  0.337  1.0
  Tl  Tl2  1  0.221  0.779  0.663  1.0
[/CIF]
.