The compound described by Rb8Tl11 crystallizes in the trigonal R-3c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Tl(2), two equivalent Tl(3), and four equivalent Tl(1) atoms. In the second Rb site, Rb(2) is bonded in a 3-coordinate geometry to three equivalent Tl(2) and six equivalent Tl(1) atoms. There are three inequivalent Tl sites. In the first Tl site, Tl(3) is bonded in a 12-coordinate geometry to six equivalent Rb(1), three equivalent Tl(1), and three equivalent Tl(2) atoms. In the second Tl site, Tl(1) is bonded in a 10-coordinate geometry to two equivalent Rb(2), four equivalent Rb(1), one Tl(1), one Tl(3), and two equivalent Tl(2) atoms. In the third Tl site, Tl(2) is bonded in a 10-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), two equivalent Tl(3), and four equivalent Tl(1) atoms. is represented by the CIF file [CIF]
data_Rb8Tl11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.932
_cell_length_b   18.932
_cell_length_c   18.932
_cell_angle_alpha   32.499
_cell_angle_beta   32.499
_cell_angle_gamma   32.499
_symmetry_Int_Tables_number   1
_cell_volume   1741.729
_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
  Rb  Rb0  1  0.325  0.652  0.089  1.0
  Rb  Rb1  1  0.652  0.089  0.325  1.0
  Rb  Rb2  1  0.089  0.325  0.652  1.0
  Rb  Rb3  1  0.848  0.175  0.411  1.0
  Rb  Rb4  1  0.175  0.411  0.848  1.0
  Rb  Rb5  1  0.411  0.848  0.175  1.0
  Rb  Rb6  1  0.675  0.348  0.911  1.0
  Rb  Rb7  1  0.348  0.911  0.675  1.0
  Rb  Rb8  1  0.911  0.675  0.348  1.0
  Rb  Rb9  1  0.152  0.825  0.589  1.0
  Rb  Rb10  1  0.825  0.589  0.152  1.0
  Rb  Rb11  1  0.589  0.152  0.825  1.0
  Rb  Rb12  1  0.079  0.079  0.079  1.0
  Rb  Rb13  1  0.421  0.421  0.421  1.0
  Rb  Rb14  1  0.921  0.921  0.921  1.0
  Rb  Rb15  1  0.579  0.579  0.579  1.0
  Tl  Tl16  1  0.728  0.426  0.004  1.0
  Tl  Tl17  1  0.426  0.004  0.728  1.0
  Tl  Tl18  1  0.004  0.728  0.426  1.0
  Tl  Tl19  1  0.074  0.772  0.496  1.0
  Tl  Tl20  1  0.772  0.496  0.074  1.0
  Tl  Tl21  1  0.496  0.074  0.772  1.0
  Tl  Tl22  1  0.272  0.574  0.996  1.0
  Tl  Tl23  1  0.574  0.996  0.272  1.0
  Tl  Tl24  1  0.996  0.272  0.574  1.0
  Tl  Tl25  1  0.926  0.228  0.504  1.0
  Tl  Tl26  1  0.228  0.504  0.926  1.0
  Tl  Tl27  1  0.504  0.926  0.228  1.0
  Tl  Tl28  1  0.038  0.462  0.250  1.0
  Tl  Tl29  1  0.462  0.250  0.038  1.0
  Tl  Tl30  1  0.250  0.038  0.462  1.0
  Tl  Tl31  1  0.962  0.538  0.750  1.0
  Tl  Tl32  1  0.538  0.750  0.962  1.0
  Tl  Tl33  1  0.750  0.962  0.538  1.0
  Tl  Tl34  1  0.199  0.199  0.199  1.0
  Tl  Tl35  1  0.301  0.301  0.301  1.0
  Tl  Tl36  1  0.801  0.801  0.801  1.0
  Tl  Tl37  1  0.699  0.699  0.699  1.0
[/CIF]
.
The compound described by Rb8Tl11 crystallizes in the trigonal R-3c space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Tl(2), two equivalent Tl(3), and four equivalent Tl(1) atoms. In the second Rb site, Rb(2) is bonded in a 3-coordinate geometry to three equivalent Tl(2) and six equivalent Tl(1) atoms. There are three inequivalent Tl sites. In the first Tl site, Tl(3) is bonded in a 12-coordinate geometry to six equivalent Rb(1), three equivalent Tl(1), and three equivalent Tl(2) atoms. In the second Tl site, Tl(1) is bonded in a 10-coordinate geometry to two equivalent Rb(2), four equivalent Rb(1), one Tl(1), one Tl(3), and two equivalent Tl(2) atoms. In the third Tl site, Tl(2) is bonded in a 10-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), two equivalent Tl(3), and four equivalent Tl(1) atoms. is represented by the CIF file [CIF]
data_Rb8Tl11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.932
_cell_length_b   18.932
_cell_length_c   18.932
_cell_angle_alpha   32.499
_cell_angle_beta   32.499
_cell_angle_gamma   32.499
_symmetry_Int_Tables_number   1
_cell_volume   1741.729
_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
  Rb  Rb0  1  0.325  0.652  0.089  1.0
  Rb  Rb1  1  0.652  0.089  0.325  1.0
  Rb  Rb2  1  0.089  0.325  0.652  1.0
  Rb  Rb3  1  0.848  0.175  0.411  1.0
  Rb  Rb4  1  0.175  0.411  0.848  1.0
  Rb  Rb5  1  0.411  0.848  0.175  1.0
  Rb  Rb6  1  0.675  0.348  0.911  1.0
  Rb  Rb7  1  0.348  0.911  0.675  1.0
  Rb  Rb8  1  0.911  0.675  0.348  1.0
  Rb  Rb9  1  0.152  0.825  0.589  1.0
  Rb  Rb10  1  0.825  0.589  0.152  1.0
  Rb  Rb11  1  0.589  0.152  0.825  1.0
  Rb  Rb12  1  0.079  0.079  0.079  1.0
  Rb  Rb13  1  0.421  0.421  0.421  1.0
  Rb  Rb14  1  0.921  0.921  0.921  1.0
  Rb  Rb15  1  0.579  0.579  0.579  1.0
  Tl  Tl16  1  0.728  0.426  0.004  1.0
  Tl  Tl17  1  0.426  0.004  0.728  1.0
  Tl  Tl18  1  0.004  0.728  0.426  1.0
  Tl  Tl19  1  0.074  0.772  0.496  1.0
  Tl  Tl20  1  0.772  0.496  0.074  1.0
  Tl  Tl21  1  0.496  0.074  0.772  1.0
  Tl  Tl22  1  0.272  0.574  0.996  1.0
  Tl  Tl23  1  0.574  0.996  0.272  1.0
  Tl  Tl24  1  0.996  0.272  0.574  1.0
  Tl  Tl25  1  0.926  0.228  0.504  1.0
  Tl  Tl26  1  0.228  0.504  0.926  1.0
  Tl  Tl27  1  0.504  0.926  0.228  1.0
  Tl  Tl28  1  0.038  0.462  0.250  1.0
  Tl  Tl29  1  0.462  0.250  0.038  1.0
  Tl  Tl30  1  0.250  0.038  0.462  1.0
  Tl  Tl31  1  0.962  0.538  0.750  1.0
  Tl  Tl32  1  0.538  0.750  0.962  1.0
  Tl  Tl33  1  0.750  0.962  0.538  1.0
  Tl  Tl34  1  0.199  0.199  0.199  1.0
  Tl  Tl35  1  0.301  0.301  0.301  1.0
  Tl  Tl36  1  0.801  0.801  0.801  1.0
  Tl  Tl37  1  0.699  0.699  0.699  1.0
[/CIF]
.