The material described by Rb2CuTlCl6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent Cl(1) atoms to form RbCl12 cuboctahedra that share corners with twelve equivalent Rb(1)Cl12 cuboctahedra, faces with six equivalent Rb(1)Cl12 cuboctahedra, faces with four equivalent Cu(1)Cl6 octahedra, and faces with four equivalent Tl(1)Cl6 octahedra. Cu(1) is bonded to six equivalent Cl(1) atoms to form CuCl6 octahedra that share corners with six equivalent Tl(1)Cl6 octahedra and faces with eight equivalent Rb(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Tl(1) is bonded to six equivalent Cl(1) atoms to form TlCl6 octahedra that share corners with six equivalent Cu(1)Cl6 octahedra and faces with eight equivalent Rb(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded to four equivalent Rb(1), one Cu(1), and one Tl(1) atom to form a mixture of distorted edge, face, and corner-sharing ClRb4TlCu octahedra. The corner-sharing octahedral tilt angles range from 0-60°. is represented by the CIF file [CIF]
data_Rb2TlCuCl6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.333
_cell_length_b   7.333
_cell_length_c   7.333
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   278.856
_cell_formula_units_Z   1
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  0.750  0.750  0.750  1.0
  Rb  Rb1  1  0.250  0.250  0.250  1.0
  Tl  Tl2  1  0.000  0.000  0.000  1.0
  Cu  Cu3  1  0.500  0.500  0.500  1.0
  Cl  Cl4  1  0.737  0.263  0.263  1.0
  Cl  Cl5  1  0.263  0.263  0.737  1.0
  Cl  Cl6  1  0.263  0.737  0.737  1.0
  Cl  Cl7  1  0.263  0.737  0.263  1.0
  Cl  Cl8  1  0.737  0.263  0.737  1.0
  Cl  Cl9  1  0.737  0.737  0.263  1.0
[/CIF]
.
The material described by Rb2CuTlCl6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent Cl(1) atoms to form RbCl12 cuboctahedra that share corners with twelve equivalent Rb(1)Cl12 cuboctahedra, faces with six equivalent Rb(1)Cl12 cuboctahedra, faces with four equivalent Cu(1)Cl6 octahedra, and faces with four equivalent Tl(1)Cl6 octahedra. Cu(1) is bonded to six equivalent Cl(1) atoms to form CuCl6 octahedra that share corners with six equivalent Tl(1)Cl6 octahedra and faces with eight equivalent Rb(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Tl(1) is bonded to six equivalent Cl(1) atoms to form TlCl6 octahedra that share corners with six equivalent Cu(1)Cl6 octahedra and faces with eight equivalent Rb(1)Cl12 cuboctahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded to four equivalent Rb(1), one Cu(1), and one Tl(1) atom to form a mixture of distorted edge, face, and corner-sharing ClRb4TlCu octahedra. The corner-sharing octahedral tilt angles range from 0-60°. is represented by the CIF file [CIF]
data_Rb2TlCuCl6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.333
_cell_length_b   7.333
_cell_length_c   7.333
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   278.856
_cell_formula_units_Z   1
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  0.750  0.750  0.750  1.0
  Rb  Rb1  1  0.250  0.250  0.250  1.0
  Tl  Tl2  1  0.000  0.000  0.000  1.0
  Cu  Cu3  1  0.500  0.500  0.500  1.0
  Cl  Cl4  1  0.737  0.263  0.263  1.0
  Cl  Cl5  1  0.263  0.263  0.737  1.0
  Cl  Cl6  1  0.263  0.737  0.737  1.0
  Cl  Cl7  1  0.263  0.737  0.263  1.0
  Cl  Cl8  1  0.737  0.263  0.737  1.0
  Cl  Cl9  1  0.737  0.737  0.263  1.0
[/CIF]
.