The compound described by RbTb(WO4)2 crystallizes in the monoclinic C2/c space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. Tb(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. W(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 41°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Rb(1) and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Rb(1), one Tb(1), and one W(1) atom. In the third O site, O(3) is bonded to one Rb(1), one Tb(1), and two equivalent W(1) atoms to form a mixture of distorted corner and edge-sharing ORbTbW2 tetrahedra. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Tb(1), and one W(1) atom. is represented by the CIF card [CIF]
data_RbTb(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.644
_cell_length_b   7.644
_cell_length_c   7.520
_cell_angle_alpha   62.474
_cell_angle_beta   62.474
_cell_angle_gamma   88.517
_symmetry_Int_Tables_number   1
_cell_volume   335.538
_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  0.200  0.800  0.750  1.0
  Rb  Rb1  1  0.800  0.200  0.250  1.0
  Tb  Tb2  1  0.776  0.224  0.750  1.0
  Tb  Tb3  1  0.224  0.776  0.250  1.0
  W  W4  1  0.700  0.689  0.782  1.0
  W  W5  1  0.300  0.311  0.218  1.0
  W  W6  1  0.311  0.300  0.718  1.0
  W  W7  1  0.689  0.700  0.282  1.0
  O  O8  1  0.621  0.752  0.561  1.0
  O  O9  1  0.379  0.248  0.439  1.0
  O  O10  1  0.248  0.379  0.939  1.0
  O  O11  1  0.752  0.621  0.061  1.0
  O  O12  1  0.374  0.061  0.873  1.0
  O  O13  1  0.626  0.939  0.127  1.0
  O  O14  1  0.939  0.626  0.627  1.0
  O  O15  1  0.061  0.374  0.373  1.0
  O  O16  1  0.591  0.370  0.968  1.0
  O  O17  1  0.409  0.630  0.032  1.0
  O  O18  1  0.630  0.409  0.532  1.0
  O  O19  1  0.370  0.591  0.468  1.0
  O  O20  1  0.783  0.954  0.692  1.0
  O  O21  1  0.217  0.046  0.308  1.0
  O  O22  1  0.046  0.217  0.808  1.0
  O  O23  1  0.954  0.783  0.192  1.0
[/CIF]
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The compound described by RbTb(WO4)2 crystallizes in the monoclinic C2/c space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. Tb(1) is bonded in a 6-coordinate geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. W(1) is bonded to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 41°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Rb(1) and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Rb(1), one Tb(1), and one W(1) atom. In the third O site, O(3) is bonded to one Rb(1), one Tb(1), and two equivalent W(1) atoms to form a mixture of distorted corner and edge-sharing ORbTbW2 tetrahedra. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Tb(1), and one W(1) atom. is represented by the CIF card [CIF]
data_RbTb(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.644
_cell_length_b   7.644
_cell_length_c   7.520
_cell_angle_alpha   62.474
_cell_angle_beta   62.474
_cell_angle_gamma   88.517
_symmetry_Int_Tables_number   1
_cell_volume   335.538
_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  0.200  0.800  0.750  1.0
  Rb  Rb1  1  0.800  0.200  0.250  1.0
  Tb  Tb2  1  0.776  0.224  0.750  1.0
  Tb  Tb3  1  0.224  0.776  0.250  1.0
  W  W4  1  0.700  0.689  0.782  1.0
  W  W5  1  0.300  0.311  0.218  1.0
  W  W6  1  0.311  0.300  0.718  1.0
  W  W7  1  0.689  0.700  0.282  1.0
  O  O8  1  0.621  0.752  0.561  1.0
  O  O9  1  0.379  0.248  0.439  1.0
  O  O10  1  0.248  0.379  0.939  1.0
  O  O11  1  0.752  0.621  0.061  1.0
  O  O12  1  0.374  0.061  0.873  1.0
  O  O13  1  0.626  0.939  0.127  1.0
  O  O14  1  0.939  0.626  0.627  1.0
  O  O15  1  0.061  0.374  0.373  1.0
  O  O16  1  0.591  0.370  0.968  1.0
  O  O17  1  0.409  0.630  0.032  1.0
  O  O18  1  0.630  0.409  0.532  1.0
  O  O19  1  0.370  0.591  0.468  1.0
  O  O20  1  0.783  0.954  0.692  1.0
  O  O21  1  0.217  0.046  0.308  1.0
  O  O22  1  0.046  0.217  0.808  1.0
  O  O23  1  0.954  0.783  0.192  1.0
[/CIF]
.