The structure described by K8Tl11 crystallizes in the trigonal R-3c space group. There are two inequivalent K sites. In the first K site, K(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 K site, K(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Tl(2) and six equivalent Tl(1) atoms. There are three inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 10-coordinate geometry to two equivalent K(2), four equivalent K(1), one Tl(1), one Tl(3), and two equivalent Tl(2) atoms. In the second Tl site, Tl(2) is bonded in a 10-coordinate geometry to two equivalent K(1), two equivalent K(2), two equivalent Tl(3), and four equivalent Tl(1) atoms. In the third Tl site, Tl(3) is bonded in a 12-coordinate geometry to six equivalent K(1), three equivalent Tl(1), and three equivalent Tl(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K8Tl11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.342
_cell_length_b   18.342
_cell_length_c   18.342
_cell_angle_alpha   32.573
_cell_angle_beta   32.573
_cell_angle_gamma   32.573
_symmetry_Int_Tables_number   1
_cell_volume   1590.626
_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
  K  K0  1  0.326  0.090  0.650  1.0
  K  K1  1  0.079  0.079  0.079  1.0
  K  K2  1  0.921  0.921  0.921  1.0
  K  K3  1  0.910  0.350  0.674  1.0
  K  K4  1  0.350  0.674  0.910  1.0
  K  K5  1  0.174  0.850  0.410  1.0
  K  K6  1  0.590  0.826  0.150  1.0
  K  K7  1  0.090  0.650  0.326  1.0
  K  K8  1  0.850  0.410  0.174  1.0
  K  K9  1  0.150  0.590  0.826  1.0
  K  K10  1  0.826  0.150  0.590  1.0
  K  K11  1  0.650  0.326  0.090  1.0
  K  K12  1  0.410  0.174  0.850  1.0
  K  K13  1  0.421  0.421  0.421  1.0
  K  K14  1  0.674  0.910  0.350  1.0
  K  K15  1  0.579  0.579  0.579  1.0
  Tl  Tl16  1  0.228  0.916  0.511  1.0
  Tl  Tl17  1  0.584  0.272  0.989  1.0
  Tl  Tl18  1  0.468  0.032  0.250  1.0
  Tl  Tl19  1  0.198  0.198  0.198  1.0
  Tl  Tl20  1  0.084  0.489  0.772  1.0
  Tl  Tl21  1  0.772  0.084  0.489  1.0
  Tl  Tl22  1  0.968  0.750  0.532  1.0
  Tl  Tl23  1  0.532  0.968  0.750  1.0
  Tl  Tl24  1  0.272  0.989  0.584  1.0
  Tl  Tl25  1  0.416  0.728  0.011  1.0
  Tl  Tl26  1  0.302  0.302  0.302  1.0
  Tl  Tl27  1  0.032  0.250  0.468  1.0
  Tl  Tl28  1  0.750  0.532  0.968  1.0
  Tl  Tl29  1  0.698  0.698  0.698  1.0
  Tl  Tl30  1  0.489  0.772  0.084  1.0
  Tl  Tl31  1  0.511  0.228  0.916  1.0
  Tl  Tl32  1  0.250  0.468  0.032  1.0
  Tl  Tl33  1  0.916  0.511  0.228  1.0
  Tl  Tl34  1  0.802  0.802  0.802  1.0
  Tl  Tl35  1  0.011  0.416  0.728  1.0
  Tl  Tl36  1  0.728  0.011  0.416  1.0
  Tl  Tl37  1  0.989  0.584  0.272  1.0
[/CIF]
.
The structure described by K8Tl11 crystallizes in the trigonal R-3c space group. There are two inequivalent K sites. In the first K site, K(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 K site, K(2) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Tl(2) and six equivalent Tl(1) atoms. There are three inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 10-coordinate geometry to two equivalent K(2), four equivalent K(1), one Tl(1), one Tl(3), and two equivalent Tl(2) atoms. In the second Tl site, Tl(2) is bonded in a 10-coordinate geometry to two equivalent K(1), two equivalent K(2), two equivalent Tl(3), and four equivalent Tl(1) atoms. In the third Tl site, Tl(3) is bonded in a 12-coordinate geometry to six equivalent K(1), three equivalent Tl(1), and three equivalent Tl(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_K8Tl11
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.342
_cell_length_b   18.342
_cell_length_c   18.342
_cell_angle_alpha   32.573
_cell_angle_beta   32.573
_cell_angle_gamma   32.573
_symmetry_Int_Tables_number   1
_cell_volume   1590.626
_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
  K  K0  1  0.326  0.090  0.650  1.0
  K  K1  1  0.079  0.079  0.079  1.0
  K  K2  1  0.921  0.921  0.921  1.0
  K  K3  1  0.910  0.350  0.674  1.0
  K  K4  1  0.350  0.674  0.910  1.0
  K  K5  1  0.174  0.850  0.410  1.0
  K  K6  1  0.590  0.826  0.150  1.0
  K  K7  1  0.090  0.650  0.326  1.0
  K  K8  1  0.850  0.410  0.174  1.0
  K  K9  1  0.150  0.590  0.826  1.0
  K  K10  1  0.826  0.150  0.590  1.0
  K  K11  1  0.650  0.326  0.090  1.0
  K  K12  1  0.410  0.174  0.850  1.0
  K  K13  1  0.421  0.421  0.421  1.0
  K  K14  1  0.674  0.910  0.350  1.0
  K  K15  1  0.579  0.579  0.579  1.0
  Tl  Tl16  1  0.228  0.916  0.511  1.0
  Tl  Tl17  1  0.584  0.272  0.989  1.0
  Tl  Tl18  1  0.468  0.032  0.250  1.0
  Tl  Tl19  1  0.198  0.198  0.198  1.0
  Tl  Tl20  1  0.084  0.489  0.772  1.0
  Tl  Tl21  1  0.772  0.084  0.489  1.0
  Tl  Tl22  1  0.968  0.750  0.532  1.0
  Tl  Tl23  1  0.532  0.968  0.750  1.0
  Tl  Tl24  1  0.272  0.989  0.584  1.0
  Tl  Tl25  1  0.416  0.728  0.011  1.0
  Tl  Tl26  1  0.302  0.302  0.302  1.0
  Tl  Tl27  1  0.032  0.250  0.468  1.0
  Tl  Tl28  1  0.750  0.532  0.968  1.0
  Tl  Tl29  1  0.698  0.698  0.698  1.0
  Tl  Tl30  1  0.489  0.772  0.084  1.0
  Tl  Tl31  1  0.511  0.228  0.916  1.0
  Tl  Tl32  1  0.250  0.468  0.032  1.0
  Tl  Tl33  1  0.916  0.511  0.228  1.0
  Tl  Tl34  1  0.802  0.802  0.802  1.0
  Tl  Tl35  1  0.011  0.416  0.728  1.0
  Tl  Tl36  1  0.728  0.011  0.416  1.0
  Tl  Tl37  1  0.989  0.584  0.272  1.0
[/CIF]
.