The structure described by Rb2TlAlF6 crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent F(1) atoms to form distorted RbF12 cuboctahedra that share corners with twelve equivalent Rb(1)F12 cuboctahedra, faces with six equivalent Rb(1)F12 cuboctahedra, faces with four equivalent Tl(1)F6 octahedra, and faces with four equivalent Al(1)F6 octahedra. Tl(1) is bonded to six equivalent F(1) atoms to form TlF6 octahedra that share corners with six equivalent Al(1)F6 octahedra and faces with eight equivalent Rb(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. Al(1) is bonded to six equivalent F(1) atoms to form AlF6 octahedra that share corners with six equivalent Tl(1)F6 octahedra and faces with eight equivalent Rb(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. F(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1), one Tl(1), and one Al(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2AlTlF6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.404
_cell_length_b   6.404
_cell_length_c   6.404
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   185.683
_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  0.250  0.250  0.250  1.0
  Rb  Rb1  1  0.750  0.750  0.750  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  Tl  Tl3  1  0.500  0.500  0.500  1.0
  F  F4  1  0.204  0.204  0.796  1.0
  F  F5  1  0.204  0.796  0.796  1.0
  F  F6  1  0.796  0.796  0.204  1.0
  F  F7  1  0.204  0.796  0.204  1.0
  F  F8  1  0.796  0.204  0.796  1.0
  F  F9  1  0.796  0.204  0.204  1.0
[/CIF]
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The structure described by Rb2TlAlF6 crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent F(1) atoms to form distorted RbF12 cuboctahedra that share corners with twelve equivalent Rb(1)F12 cuboctahedra, faces with six equivalent Rb(1)F12 cuboctahedra, faces with four equivalent Tl(1)F6 octahedra, and faces with four equivalent Al(1)F6 octahedra. Tl(1) is bonded to six equivalent F(1) atoms to form TlF6 octahedra that share corners with six equivalent Al(1)F6 octahedra and faces with eight equivalent Rb(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. Al(1) is bonded to six equivalent F(1) atoms to form AlF6 octahedra that share corners with six equivalent Tl(1)F6 octahedra and faces with eight equivalent Rb(1)F12 cuboctahedra. The corner-sharing octahedra are not tilted. F(1) is bonded in a distorted single-bond geometry to four equivalent Rb(1), one Tl(1), and one Al(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2AlTlF6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.404
_cell_length_b   6.404
_cell_length_c   6.404
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   185.683
_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  0.250  0.250  0.250  1.0
  Rb  Rb1  1  0.750  0.750  0.750  1.0
  Al  Al2  1  0.000  0.000  0.000  1.0
  Tl  Tl3  1  0.500  0.500  0.500  1.0
  F  F4  1  0.204  0.204  0.796  1.0
  F  F5  1  0.204  0.796  0.796  1.0
  F  F6  1  0.796  0.796  0.204  1.0
  F  F7  1  0.204  0.796  0.204  1.0
  F  F8  1  0.796  0.204  0.796  1.0
  F  F9  1  0.796  0.204  0.204  1.0
[/CIF]
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