The crystal structure described by RbNa3W2O17 crystallizes in the hexagonal P6_3/m space group. Rb(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. Na(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. W(1) is bonded in a tetrahedral geometry to one O(4) and three equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(4) is bonded in a rectangular see-saw-like geometry to three equivalent Na(1) and one W(1) atom. In the second O site, O(1) is bonded in a T-shaped geometry to one Rb(1) and two equivalent Na(1) atoms. In the third O site, O(2) is bonded in a distorted L-shaped geometry to one Rb(1) and one Na(1) atom. In the fourth O site, O(3) is bonded in a single-bond geometry to one Na(1) and one W(1) atom. is represented by the CIF card [CIF]
data_RbNa3W2O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.780
_cell_length_b   8.780
_cell_length_c   10.921
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   729.130
_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
  Rb  Rb0  1  0.000  0.000  0.750  1.0
  Rb  Rb1  1  0.000  0.000  0.250  1.0
  Na  Na2  1  0.630  0.093  0.750  1.0
  Na  Na3  1  0.370  0.907  0.250  1.0
  Na  Na4  1  0.463  0.370  0.750  1.0
  Na  Na5  1  0.537  0.630  0.250  1.0
  Na  Na6  1  0.907  0.537  0.750  1.0
  Na  Na7  1  0.093  0.463  0.250  1.0
  W  W8  1  0.667  0.333  0.452  1.0
  W  W9  1  0.333  0.667  0.548  1.0
  W  W10  1  0.333  0.667  0.952  1.0
  W  W11  1  0.667  0.333  0.048  1.0
  O  O12  1  0.957  0.303  0.750  1.0
  O  O13  1  0.043  0.697  0.250  1.0
  O  O14  1  0.347  0.043  0.750  1.0
  O  O15  1  0.653  0.957  0.250  1.0
  O  O16  1  0.697  0.653  0.750  1.0
  O  O17  1  0.303  0.347  0.250  1.0
  O  O18  1  0.815  0.059  0.958  1.0
  O  O19  1  0.185  0.941  0.042  1.0
  O  O20  1  0.244  0.185  0.958  1.0
  O  O21  1  0.185  0.941  0.458  1.0
  O  O22  1  0.756  0.815  0.042  1.0
  O  O23  1  0.815  0.059  0.542  1.0
  O  O24  1  0.941  0.756  0.958  1.0
  O  O25  1  0.756  0.815  0.458  1.0
  O  O26  1  0.059  0.244  0.042  1.0
  O  O27  1  0.244  0.185  0.542  1.0
  O  O28  1  0.059  0.244  0.458  1.0
  O  O29  1  0.941  0.756  0.542  1.0
  O  O30  1  0.538  0.687  0.895  1.0
  O  O31  1  0.462  0.313  0.104  1.0
  O  O32  1  0.149  0.462  0.895  1.0
  O  O33  1  0.462  0.313  0.396  1.0
  O  O34  1  0.851  0.538  0.104  1.0
  O  O35  1  0.538  0.687  0.605  1.0
  O  O36  1  0.313  0.851  0.895  1.0
  O  O37  1  0.851  0.538  0.396  1.0
  O  O38  1  0.687  0.149  0.104  1.0
  O  O39  1  0.149  0.462  0.605  1.0
  O  O40  1  0.687  0.149  0.396  1.0
  O  O41  1  0.313  0.851  0.605  1.0
  O  O42  1  0.667  0.333  0.882  1.0
  O  O43  1  0.333  0.667  0.118  1.0
  O  O44  1  0.333  0.667  0.382  1.0
  O  O45  1  0.667  0.333  0.618  1.0
[/CIF]
.
The crystal structure described by RbNa3W2O17 crystallizes in the hexagonal P6_3/m space group. Rb(1) is bonded in a 9-coordinate geometry to three equivalent O(1) and six equivalent O(2) atoms. Na(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. W(1) is bonded in a tetrahedral geometry to one O(4) and three equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(4) is bonded in a rectangular see-saw-like geometry to three equivalent Na(1) and one W(1) atom. In the second O site, O(1) is bonded in a T-shaped geometry to one Rb(1) and two equivalent Na(1) atoms. In the third O site, O(2) is bonded in a distorted L-shaped geometry to one Rb(1) and one Na(1) atom. In the fourth O site, O(3) is bonded in a single-bond geometry to one Na(1) and one W(1) atom. is represented by the CIF card [CIF]
data_RbNa3W2O17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.780
_cell_length_b   8.780
_cell_length_c   10.921
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   729.130
_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
  Rb  Rb0  1  0.000  0.000  0.750  1.0
  Rb  Rb1  1  0.000  0.000  0.250  1.0
  Na  Na2  1  0.630  0.093  0.750  1.0
  Na  Na3  1  0.370  0.907  0.250  1.0
  Na  Na4  1  0.463  0.370  0.750  1.0
  Na  Na5  1  0.537  0.630  0.250  1.0
  Na  Na6  1  0.907  0.537  0.750  1.0
  Na  Na7  1  0.093  0.463  0.250  1.0
  W  W8  1  0.667  0.333  0.452  1.0
  W  W9  1  0.333  0.667  0.548  1.0
  W  W10  1  0.333  0.667  0.952  1.0
  W  W11  1  0.667  0.333  0.048  1.0
  O  O12  1  0.957  0.303  0.750  1.0
  O  O13  1  0.043  0.697  0.250  1.0
  O  O14  1  0.347  0.043  0.750  1.0
  O  O15  1  0.653  0.957  0.250  1.0
  O  O16  1  0.697  0.653  0.750  1.0
  O  O17  1  0.303  0.347  0.250  1.0
  O  O18  1  0.815  0.059  0.958  1.0
  O  O19  1  0.185  0.941  0.042  1.0
  O  O20  1  0.244  0.185  0.958  1.0
  O  O21  1  0.185  0.941  0.458  1.0
  O  O22  1  0.756  0.815  0.042  1.0
  O  O23  1  0.815  0.059  0.542  1.0
  O  O24  1  0.941  0.756  0.958  1.0
  O  O25  1  0.756  0.815  0.458  1.0
  O  O26  1  0.059  0.244  0.042  1.0
  O  O27  1  0.244  0.185  0.542  1.0
  O  O28  1  0.059  0.244  0.458  1.0
  O  O29  1  0.941  0.756  0.542  1.0
  O  O30  1  0.538  0.687  0.895  1.0
  O  O31  1  0.462  0.313  0.104  1.0
  O  O32  1  0.149  0.462  0.895  1.0
  O  O33  1  0.462  0.313  0.396  1.0
  O  O34  1  0.851  0.538  0.104  1.0
  O  O35  1  0.538  0.687  0.605  1.0
  O  O36  1  0.313  0.851  0.895  1.0
  O  O37  1  0.851  0.538  0.396  1.0
  O  O38  1  0.687  0.149  0.104  1.0
  O  O39  1  0.149  0.462  0.605  1.0
  O  O40  1  0.687  0.149  0.396  1.0
  O  O41  1  0.313  0.851  0.605  1.0
  O  O42  1  0.667  0.333  0.882  1.0
  O  O43  1  0.333  0.667  0.118  1.0
  O  O44  1  0.333  0.667  0.382  1.0
  O  O45  1  0.667  0.333  0.618  1.0
[/CIF]
.