The structure described by NaTl3 crystallizes in the hexagonal P6_3/mmc space group. Na(1) is bonded to twelve equivalent Tl(1) atoms to form a mixture of corner and face-sharing NaTl12 cuboctahedra. Tl(1) is bonded in a 8-coordinate geometry to four equivalent Na(1) and four equivalent Tl(1) atoms. is represented by the CIF file [CIF]
data_NaTl3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.323
_cell_length_b   7.323
_cell_length_c   5.236
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   243.135
_cell_formula_units_Z   2
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
  Na  Na0  1  0.333  0.667  0.750  1.0
  Na  Na1  1  0.667  0.333  0.250  1.0
  Tl  Tl2  1  0.164  0.328  0.250  1.0
  Tl  Tl3  1  0.672  0.836  0.250  1.0
  Tl  Tl4  1  0.164  0.836  0.250  1.0
  Tl  Tl5  1  0.836  0.672  0.750  1.0
  Tl  Tl6  1  0.328  0.164  0.750  1.0
  Tl  Tl7  1  0.836  0.164  0.750  1.0
[/CIF]
.
The structure described by NaTl3 crystallizes in the hexagonal P6_3/mmc space group. Na(1) is bonded to twelve equivalent Tl(1) atoms to form a mixture of corner and face-sharing NaTl12 cuboctahedra. Tl(1) is bonded in a 8-coordinate geometry to four equivalent Na(1) and four equivalent Tl(1) atoms. is represented by the CIF file [CIF]
data_NaTl3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.323
_cell_length_b   7.323
_cell_length_c   5.236
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   243.135
_cell_formula_units_Z   2
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
  Na  Na0  1  0.333  0.667  0.750  1.0
  Na  Na1  1  0.667  0.333  0.250  1.0
  Tl  Tl2  1  0.164  0.328  0.250  1.0
  Tl  Tl3  1  0.672  0.836  0.250  1.0
  Tl  Tl4  1  0.164  0.836  0.250  1.0
  Tl  Tl5  1  0.836  0.672  0.750  1.0
  Tl  Tl6  1  0.328  0.164  0.750  1.0
  Tl  Tl7  1  0.836  0.164  0.750  1.0
[/CIF]
.