The compound described by RbYb(WO4)2 crystallizes in the trigonal P-3m1 space group. Rb(1) is bonded to six equivalent O(1) atoms to form distorted RbO6 cuboctahedra that share corners with six equivalent W(1)O4 tetrahedra and faces with two equivalent Yb(1)O6 octahedra. Yb(1) is bonded to six equivalent O(1) atoms to form YbO6 octahedra that share corners with six equivalent W(1)O4 tetrahedra and faces with two equivalent Rb(1)O6 cuboctahedra. W(1) is bonded to one O(2) and three equivalent O(1) atoms to form WO4 tetrahedra that share corners with three equivalent Rb(1)O6 cuboctahedra and corners with three equivalent Yb(1)O6 octahedra. The corner-sharing octahedral tilt angles are 18°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Rb(1), one Yb(1), and one W(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one W(1) atom. is represented by the CIF card [CIF]
data_RbYb(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.193
_cell_length_b   6.193
_cell_length_c   8.193
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   272.145
_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  0.000  0.000  0.000  1.0
  Yb  Yb1  1  0.000  0.000  0.500  1.0
  W  W2  1  0.333  0.667  0.264  1.0
  W  W3  1  0.667  0.333  0.736  1.0
  O  O4  1  0.172  0.828  0.334  1.0
  O  O5  1  0.828  0.172  0.666  1.0
  O  O6  1  0.172  0.344  0.334  1.0
  O  O7  1  0.828  0.656  0.666  1.0
  O  O8  1  0.656  0.828  0.334  1.0
  O  O9  1  0.344  0.172  0.666  1.0
  O  O10  1  0.333  0.667  0.045  1.0
  O  O11  1  0.667  0.333  0.955  1.0
[/CIF]
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The compound described by RbYb(WO4)2 crystallizes in the trigonal P-3m1 space group. Rb(1) is bonded to six equivalent O(1) atoms to form distorted RbO6 cuboctahedra that share corners with six equivalent W(1)O4 tetrahedra and faces with two equivalent Yb(1)O6 octahedra. Yb(1) is bonded to six equivalent O(1) atoms to form YbO6 octahedra that share corners with six equivalent W(1)O4 tetrahedra and faces with two equivalent Rb(1)O6 cuboctahedra. W(1) is bonded to one O(2) and three equivalent O(1) atoms to form WO4 tetrahedra that share corners with three equivalent Rb(1)O6 cuboctahedra and corners with three equivalent Yb(1)O6 octahedra. The corner-sharing octahedral tilt angles are 18°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Rb(1), one Yb(1), and one W(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one W(1) atom. is represented by the CIF card [CIF]
data_RbYb(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.193
_cell_length_b   6.193
_cell_length_c   8.193
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   272.145
_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  0.000  0.000  0.000  1.0
  Yb  Yb1  1  0.000  0.000  0.500  1.0
  W  W2  1  0.333  0.667  0.264  1.0
  W  W3  1  0.667  0.333  0.736  1.0
  O  O4  1  0.172  0.828  0.334  1.0
  O  O5  1  0.828  0.172  0.666  1.0
  O  O6  1  0.172  0.344  0.334  1.0
  O  O7  1  0.828  0.656  0.666  1.0
  O  O8  1  0.656  0.828  0.334  1.0
  O  O9  1  0.344  0.172  0.666  1.0
  O  O10  1  0.333  0.667  0.045  1.0
  O  O11  1  0.667  0.333  0.955  1.0
[/CIF]
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