The crystal structure described by Rb2KWO3F3 crystallizes in the orthorhombic Fmm2 space group. Rb(1) is bonded to two equivalent O(2), four equivalent O(1), two equivalent F(2), and four equivalent F(1) atoms to form distorted RbO6F6 cuboctahedra that share corners with twelve equivalent Rb(1)O6F6 cuboctahedra, faces with six equivalent Rb(1)O6F6 cuboctahedra, faces with four equivalent K(1)O3F3 octahedra, and faces with four equivalent W(1)O3F3 octahedra. K(1) is bonded to one O(2), two equivalent O(1), one F(2), and two equivalent F(1) atoms to form KO3F3 octahedra that share corners with six equivalent W(1)O3F3 octahedra and faces with eight equivalent Rb(1)O6F6 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-13°. W(1) is bonded to one O(2), two equivalent O(1), one F(2), and two equivalent F(1) atoms to form WO3F3 octahedra that share corners with six equivalent K(1)O3F3 octahedra and faces with eight equivalent Rb(1)O6F6 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-13°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to four equivalent Rb(1), one K(1), and one W(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Rb(1), one K(1), and one W(1) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted linear geometry to four equivalent Rb(1), one K(1), and one W(1) atom. In the second F site, F(2) is bonded to four equivalent Rb(1), one K(1), and one W(1) atom to form distorted corner-sharing FKRb4W octahedra. The corner-sharing octahedral tilt angles are 8°. is represented by the Crystallographic Information File (CIF) [CIF]
data_KRb2W(OF)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.498
_cell_length_b   6.466
_cell_length_c   6.428
_cell_angle_alpha   60.528
_cell_angle_beta   60.023
_cell_angle_gamma   59.449
_symmetry_Int_Tables_number   1
_cell_volume   190.927
_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
  K  K0  1  0.502  0.502  0.498  1.0
  Rb  Rb1  1  0.759  0.759  0.741  1.0
  Rb  Rb2  1  0.259  0.259  0.241  1.0
  W  W3  1  0.017  0.017  0.983  1.0
  O  O4  1  0.187  0.780  0.813  1.0
  O  O5  1  0.213  0.213  0.787  1.0
  O  O6  1  0.780  0.187  0.220  1.0
  F  F7  1  0.221  0.781  0.219  1.0
  F  F8  1  0.781  0.781  0.219  1.0
  F  F9  1  0.781  0.221  0.779  1.0
[/CIF]
.
The crystal structure described by Rb2KWO3F3 crystallizes in the orthorhombic Fmm2 space group. Rb(1) is bonded to two equivalent O(2), four equivalent O(1), two equivalent F(2), and four equivalent F(1) atoms to form distorted RbO6F6 cuboctahedra that share corners with twelve equivalent Rb(1)O6F6 cuboctahedra, faces with six equivalent Rb(1)O6F6 cuboctahedra, faces with four equivalent K(1)O3F3 octahedra, and faces with four equivalent W(1)O3F3 octahedra. K(1) is bonded to one O(2), two equivalent O(1), one F(2), and two equivalent F(1) atoms to form KO3F3 octahedra that share corners with six equivalent W(1)O3F3 octahedra and faces with eight equivalent Rb(1)O6F6 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-13°. W(1) is bonded to one O(2), two equivalent O(1), one F(2), and two equivalent F(1) atoms to form WO3F3 octahedra that share corners with six equivalent K(1)O3F3 octahedra and faces with eight equivalent Rb(1)O6F6 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-13°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to four equivalent Rb(1), one K(1), and one W(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Rb(1), one K(1), and one W(1) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a distorted linear geometry to four equivalent Rb(1), one K(1), and one W(1) atom. In the second F site, F(2) is bonded to four equivalent Rb(1), one K(1), and one W(1) atom to form distorted corner-sharing FKRb4W octahedra. The corner-sharing octahedral tilt angles are 8°. is represented by the Crystallographic Information File (CIF) [CIF]
data_KRb2W(OF)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.498
_cell_length_b   6.466
_cell_length_c   6.428
_cell_angle_alpha   60.528
_cell_angle_beta   60.023
_cell_angle_gamma   59.449
_symmetry_Int_Tables_number   1
_cell_volume   190.927
_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
  K  K0  1  0.502  0.502  0.498  1.0
  Rb  Rb1  1  0.759  0.759  0.741  1.0
  Rb  Rb2  1  0.259  0.259  0.241  1.0
  W  W3  1  0.017  0.017  0.983  1.0
  O  O4  1  0.187  0.780  0.813  1.0
  O  O5  1  0.213  0.213  0.787  1.0
  O  O6  1  0.780  0.187  0.220  1.0
  F  F7  1  0.221  0.781  0.219  1.0
  F  F8  1  0.781  0.781  0.219  1.0
  F  F9  1  0.781  0.221  0.779  1.0
[/CIF]
.