The structure described by Rb5Ta(TlAs2)2 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Tl(1), one Tl(2), one As(3), and four equivalent As(1) atoms. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to two equivalent Tl(2), one As(1), one As(2), and one As(3) atom. In the third Rb site, Rb(3) is bonded in a 7-coordinate geometry to two equivalent Tl(1), one As(3), two equivalent As(1), and two equivalent As(2) atoms. Ta(1) is bonded in a tetrahedral geometry to one As(2), one As(3), and two equivalent As(1) atoms. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 7-coordinate geometry to one Rb(1), four equivalent Rb(3), one As(2), and one As(3) atom. In the second Tl site, Tl(2) is bonded in a 2-coordinate geometry to one Rb(1), four equivalent Rb(2), and two equivalent As(1) atoms. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 2-coordinate geometry to one Rb(2), two equivalent Rb(1), two equivalent Rb(3), one Ta(1), and one Tl(2) atom. In the second As site, As(2) is bonded in a 8-coordinate geometry to two equivalent Rb(2), four equivalent Rb(3), one Ta(1), and one Tl(1) atom. In the third As site, As(3) is bonded in a 7-coordinate geometry to one Rb(1), two equivalent Rb(2), two equivalent Rb(3), one Ta(1), and one Tl(1) atom. is represented by the CIF card [CIF]
data_Rb5Ta(TlAs2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.854
_cell_length_b   11.189
_cell_length_c   19.333
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1698.892
_cell_formula_units_Z   4
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  0.893  0.750  0.479  1.0
  Rb  Rb1  1  0.693  0.025  0.578  1.0
  Rb  Rb2  1  0.480  0.946  0.749  1.0
  Rb  Rb3  1  0.980  0.054  0.751  1.0
  Rb  Rb4  1  0.020  0.946  0.249  1.0
  Rb  Rb5  1  0.980  0.446  0.751  1.0
  Rb  Rb6  1  0.107  0.250  0.521  1.0
  Rb  Rb7  1  0.807  0.475  0.078  1.0
  Rb  Rb8  1  0.520  0.054  0.251  1.0
  Rb  Rb9  1  0.693  0.475  0.578  1.0
  Rb  Rb10  1  0.307  0.525  0.422  1.0
  Rb  Rb11  1  0.393  0.250  0.021  1.0
  Rb  Rb12  1  0.307  0.975  0.422  1.0
  Rb  Rb13  1  0.520  0.446  0.251  1.0
  Rb  Rb14  1  0.607  0.750  0.979  1.0
  Rb  Rb15  1  0.193  0.525  0.922  1.0
  Rb  Rb16  1  0.807  0.025  0.078  1.0
  Rb  Rb17  1  0.480  0.554  0.749  1.0
  Rb  Rb18  1  0.193  0.975  0.922  1.0
  Rb  Rb19  1  0.020  0.554  0.249  1.0
  Ta  Ta20  1  0.417  0.750  0.163  1.0
  Ta  Ta21  1  0.583  0.250  0.837  1.0
  Ta  Ta22  1  0.917  0.250  0.337  1.0
  Ta  Ta23  1  0.083  0.750  0.663  1.0
  Tl  Tl24  1  0.678  0.750  0.313  1.0
  Tl  Tl25  1  0.421  0.750  0.554  1.0
  Tl  Tl26  1  0.921  0.250  0.946  1.0
  Tl  Tl27  1  0.579  0.250  0.446  1.0
  Tl  Tl28  1  0.322  0.250  0.687  1.0
  Tl  Tl29  1  0.822  0.750  0.813  1.0
  Tl  Tl30  1  0.079  0.750  0.054  1.0
  Tl  Tl31  1  0.178  0.250  0.187  1.0
  As  As32  1  0.197  0.930  0.603  1.0
  As  As33  1  0.167  0.750  0.789  1.0
  As  As34  1  0.333  0.750  0.289  1.0
  As  As35  1  0.303  0.930  0.103  1.0
  As  As36  1  0.768  0.750  0.664  1.0
  As  As37  1  0.303  0.570  0.103  1.0
  As  As38  1  0.803  0.070  0.397  1.0
  As  As39  1  0.232  0.250  0.336  1.0
  As  As40  1  0.803  0.430  0.397  1.0
  As  As41  1  0.833  0.250  0.211  1.0
  As  As42  1  0.697  0.070  0.897  1.0
  As  As43  1  0.732  0.750  0.164  1.0
  As  As44  1  0.667  0.250  0.711  1.0
  As  As45  1  0.268  0.250  0.836  1.0
  As  As46  1  0.197  0.570  0.603  1.0
  As  As47  1  0.697  0.430  0.897  1.0
[/CIF]
.
The structure described by Rb5Ta(TlAs2)2 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one Tl(1), one Tl(2), one As(3), and four equivalent As(1) atoms. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to two equivalent Tl(2), one As(1), one As(2), and one As(3) atom. In the third Rb site, Rb(3) is bonded in a 7-coordinate geometry to two equivalent Tl(1), one As(3), two equivalent As(1), and two equivalent As(2) atoms. Ta(1) is bonded in a tetrahedral geometry to one As(2), one As(3), and two equivalent As(1) atoms. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a 7-coordinate geometry to one Rb(1), four equivalent Rb(3), one As(2), and one As(3) atom. In the second Tl site, Tl(2) is bonded in a 2-coordinate geometry to one Rb(1), four equivalent Rb(2), and two equivalent As(1) atoms. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 2-coordinate geometry to one Rb(2), two equivalent Rb(1), two equivalent Rb(3), one Ta(1), and one Tl(2) atom. In the second As site, As(2) is bonded in a 8-coordinate geometry to two equivalent Rb(2), four equivalent Rb(3), one Ta(1), and one Tl(1) atom. In the third As site, As(3) is bonded in a 7-coordinate geometry to one Rb(1), two equivalent Rb(2), two equivalent Rb(3), one Ta(1), and one Tl(1) atom. is represented by the CIF card [CIF]
data_Rb5Ta(TlAs2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.854
_cell_length_b   11.189
_cell_length_c   19.333
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1698.892
_cell_formula_units_Z   4
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  0.893  0.750  0.479  1.0
  Rb  Rb1  1  0.693  0.025  0.578  1.0
  Rb  Rb2  1  0.480  0.946  0.749  1.0
  Rb  Rb3  1  0.980  0.054  0.751  1.0
  Rb  Rb4  1  0.020  0.946  0.249  1.0
  Rb  Rb5  1  0.980  0.446  0.751  1.0
  Rb  Rb6  1  0.107  0.250  0.521  1.0
  Rb  Rb7  1  0.807  0.475  0.078  1.0
  Rb  Rb8  1  0.520  0.054  0.251  1.0
  Rb  Rb9  1  0.693  0.475  0.578  1.0
  Rb  Rb10  1  0.307  0.525  0.422  1.0
  Rb  Rb11  1  0.393  0.250  0.021  1.0
  Rb  Rb12  1  0.307  0.975  0.422  1.0
  Rb  Rb13  1  0.520  0.446  0.251  1.0
  Rb  Rb14  1  0.607  0.750  0.979  1.0
  Rb  Rb15  1  0.193  0.525  0.922  1.0
  Rb  Rb16  1  0.807  0.025  0.078  1.0
  Rb  Rb17  1  0.480  0.554  0.749  1.0
  Rb  Rb18  1  0.193  0.975  0.922  1.0
  Rb  Rb19  1  0.020  0.554  0.249  1.0
  Ta  Ta20  1  0.417  0.750  0.163  1.0
  Ta  Ta21  1  0.583  0.250  0.837  1.0
  Ta  Ta22  1  0.917  0.250  0.337  1.0
  Ta  Ta23  1  0.083  0.750  0.663  1.0
  Tl  Tl24  1  0.678  0.750  0.313  1.0
  Tl  Tl25  1  0.421  0.750  0.554  1.0
  Tl  Tl26  1  0.921  0.250  0.946  1.0
  Tl  Tl27  1  0.579  0.250  0.446  1.0
  Tl  Tl28  1  0.322  0.250  0.687  1.0
  Tl  Tl29  1  0.822  0.750  0.813  1.0
  Tl  Tl30  1  0.079  0.750  0.054  1.0
  Tl  Tl31  1  0.178  0.250  0.187  1.0
  As  As32  1  0.197  0.930  0.603  1.0
  As  As33  1  0.167  0.750  0.789  1.0
  As  As34  1  0.333  0.750  0.289  1.0
  As  As35  1  0.303  0.930  0.103  1.0
  As  As36  1  0.768  0.750  0.664  1.0
  As  As37  1  0.303  0.570  0.103  1.0
  As  As38  1  0.803  0.070  0.397  1.0
  As  As39  1  0.232  0.250  0.336  1.0
  As  As40  1  0.803  0.430  0.397  1.0
  As  As41  1  0.833  0.250  0.211  1.0
  As  As42  1  0.697  0.070  0.897  1.0
  As  As43  1  0.732  0.750  0.164  1.0
  As  As44  1  0.667  0.250  0.711  1.0
  As  As45  1  0.268  0.250  0.836  1.0
  As  As46  1  0.197  0.570  0.603  1.0
  As  As47  1  0.697  0.430  0.897  1.0
[/CIF]
.