The material described by Rb2(WO4)3 crystallizes in the trigonal R-3m space group. Rb(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form RbO6 octahedra that share corners with nine equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 70-71°. W(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form WO6 octahedra that share corners with four equivalent W(1)O6 octahedra and corners with six equivalent Rb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-71°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1) and one W(1) atom. In the second O site, O(1) is bonded in a 2-coordinate geometry to one Rb(1) and two equivalent W(1) atoms. is represented by the CIF card [CIF]
data_Rb2(WO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.182
_cell_length_b   7.182
_cell_length_c   7.182
_cell_angle_alpha   62.050
_cell_angle_beta   62.050
_cell_angle_gamma   62.050
_symmetry_Int_Tables_number   1
_cell_volume   273.966
_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  0.374  0.374  0.374  1.0
  Rb  Rb1  1  0.626  0.626  0.626  1.0
  W  W2  1  0.500  0.000  0.000  1.0
  W  W3  1  0.000  0.000  0.500  1.0
  W  W4  1  0.000  0.500  0.000  1.0
  O  O5  1  0.939  0.316  0.316  1.0
  O  O6  1  0.317  0.934  0.934  1.0
  O  O7  1  0.316  0.316  0.939  1.0
  O  O8  1  0.934  0.934  0.317  1.0
  O  O9  1  0.934  0.317  0.934  1.0
  O  O10  1  0.316  0.939  0.316  1.0
  O  O11  1  0.061  0.684  0.684  1.0
  O  O12  1  0.683  0.066  0.066  1.0
  O  O13  1  0.684  0.684  0.061  1.0
  O  O14  1  0.066  0.066  0.683  1.0
  O  O15  1  0.066  0.683  0.066  1.0
  O  O16  1  0.684  0.061  0.684  1.0
[/CIF]
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The material described by Rb2(WO4)3 crystallizes in the trigonal R-3m space group. Rb(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form RbO6 octahedra that share corners with nine equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 70-71°. W(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form WO6 octahedra that share corners with four equivalent W(1)O6 octahedra and corners with six equivalent Rb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-71°. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1) and one W(1) atom. In the second O site, O(1) is bonded in a 2-coordinate geometry to one Rb(1) and two equivalent W(1) atoms. is represented by the CIF card [CIF]
data_Rb2(WO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.182
_cell_length_b   7.182
_cell_length_c   7.182
_cell_angle_alpha   62.050
_cell_angle_beta   62.050
_cell_angle_gamma   62.050
_symmetry_Int_Tables_number   1
_cell_volume   273.966
_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  0.374  0.374  0.374  1.0
  Rb  Rb1  1  0.626  0.626  0.626  1.0
  W  W2  1  0.500  0.000  0.000  1.0
  W  W3  1  0.000  0.000  0.500  1.0
  W  W4  1  0.000  0.500  0.000  1.0
  O  O5  1  0.939  0.316  0.316  1.0
  O  O6  1  0.317  0.934  0.934  1.0
  O  O7  1  0.316  0.316  0.939  1.0
  O  O8  1  0.934  0.934  0.317  1.0
  O  O9  1  0.934  0.317  0.934  1.0
  O  O10  1  0.316  0.939  0.316  1.0
  O  O11  1  0.061  0.684  0.684  1.0
  O  O12  1  0.683  0.066  0.066  1.0
  O  O13  1  0.684  0.684  0.061  1.0
  O  O14  1  0.066  0.066  0.683  1.0
  O  O15  1  0.066  0.683  0.066  1.0
  O  O16  1  0.684  0.061  0.684  1.0
[/CIF]
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