The compound described by RbYbS2O9 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom. Yb(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(9) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Yb(1), and one S(2) atom. In the second O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Yb(1) and one S(2) atom. In the third O site, O(7) is bonded in a 3-coordinate geometry to one Rb(1), one Yb(1), and one S(2) atom. In the fourth O site, O(8) is bonded in a single-bond geometry to one Rb(1) and one S(2) atom. In the fifth O site, O(1) is bonded in a distorted single-bond geometry to one Rb(1), one Yb(1), and one S(1) atom. In the sixth O site, O(9) is bonded in a distorted single-bond geometry to one Yb(1) atom. In the seventh O site, O(2) is bonded in a 3-coordinate geometry to one Rb(1), one Yb(1), and one S(1) atom. In the eighth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Yb(1) and one S(1) atom. In the ninth O site, O(4) is bonded in a distorted single-bond geometry to one Rb(1), one Yb(1), and one S(1) atom. is represented by the CIF file [CIF]
data_RbYbS2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.864
_cell_length_b   10.235
_cell_length_c   10.377
_cell_angle_alpha   61.443
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   826.855
_cell_formula_units_Z   4
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  0.179  0.320  0.217  1.0
  Rb  Rb1  1  0.679  0.180  0.783  1.0
  Rb  Rb2  1  0.821  0.680  0.783  1.0
  Rb  Rb3  1  0.321  0.820  0.217  1.0
  Yb  Yb4  1  0.613  0.481  0.242  1.0
  Yb  Yb5  1  0.113  0.019  0.758  1.0
  Yb  Yb6  1  0.387  0.519  0.758  1.0
  Yb  Yb7  1  0.887  0.981  0.242  1.0
  S  S8  1  0.627  0.311  0.068  1.0
  S  S9  1  0.127  0.189  0.932  1.0
  S  S10  1  0.373  0.689  0.932  1.0
  S  S11  1  0.873  0.811  0.068  1.0
  S  S12  1  0.812  0.125  0.477  1.0
  S  S13  1  0.312  0.375  0.523  1.0
  S  S14  1  0.188  0.875  0.523  1.0
  S  S15  1  0.688  0.625  0.477  1.0
  O  O16  1  0.502  0.304  0.167  1.0
  O  O17  1  0.002  0.196  0.833  1.0
  O  O18  1  0.498  0.696  0.833  1.0
  O  O19  1  0.998  0.804  0.167  1.0
  O  O20  1  0.571  0.359  0.917  1.0
  O  O21  1  0.071  0.141  0.083  1.0
  O  O22  1  0.429  0.641  0.083  1.0
  O  O23  1  0.929  0.859  0.917  1.0
  O  O24  1  0.695  0.159  0.120  1.0
  O  O25  1  0.195  0.341  0.880  1.0
  O  O26  1  0.305  0.841  0.880  1.0
  O  O27  1  0.805  0.659  0.120  1.0
  O  O28  1  0.741  0.416  0.069  1.0
  O  O29  1  0.241  0.084  0.931  1.0
  O  O30  1  0.259  0.584  0.931  1.0
  O  O31  1  0.759  0.916  0.069  1.0
  O  O32  1  0.895  0.109  0.606  1.0
  O  O33  1  0.395  0.391  0.394  1.0
  O  O34  1  0.105  0.891  0.394  1.0
  O  O35  1  0.605  0.609  0.606  1.0
  O  O36  1  0.712  0.260  0.422  1.0
  O  O37  1  0.212  0.240  0.578  1.0
  O  O38  1  0.288  0.740  0.578  1.0
  O  O39  1  0.788  0.760  0.422  1.0
  O  O40  1  0.912  0.135  0.359  1.0
  O  O41  1  0.412  0.365  0.641  1.0
  O  O42  1  0.088  0.865  0.641  1.0
  O  O43  1  0.588  0.635  0.359  1.0
  O  O44  1  0.707  0.994  0.526  1.0
  O  O45  1  0.207  0.506  0.474  1.0
  O  O46  1  0.293  0.006  0.474  1.0
  O  O47  1  0.793  0.494  0.526  1.0
  O  O48  1  0.878  0.459  0.346  1.0
  O  O49  1  0.378  0.041  0.654  1.0
  O  O50  1  0.122  0.541  0.654  1.0
  O  O51  1  0.622  0.959  0.346  1.0
[/CIF]
.
The compound described by RbYbS2O9 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(4), one O(5), one O(7), and one O(8) atom. Yb(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(9) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Yb(1), and one S(2) atom. In the second O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Yb(1) and one S(2) atom. In the third O site, O(7) is bonded in a 3-coordinate geometry to one Rb(1), one Yb(1), and one S(2) atom. In the fourth O site, O(8) is bonded in a single-bond geometry to one Rb(1) and one S(2) atom. In the fifth O site, O(1) is bonded in a distorted single-bond geometry to one Rb(1), one Yb(1), and one S(1) atom. In the sixth O site, O(9) is bonded in a distorted single-bond geometry to one Yb(1) atom. In the seventh O site, O(2) is bonded in a 3-coordinate geometry to one Rb(1), one Yb(1), and one S(1) atom. In the eighth O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Yb(1) and one S(1) atom. In the ninth O site, O(4) is bonded in a distorted single-bond geometry to one Rb(1), one Yb(1), and one S(1) atom. is represented by the CIF file [CIF]
data_RbYbS2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.864
_cell_length_b   10.235
_cell_length_c   10.377
_cell_angle_alpha   61.443
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   826.855
_cell_formula_units_Z   4
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  0.179  0.320  0.217  1.0
  Rb  Rb1  1  0.679  0.180  0.783  1.0
  Rb  Rb2  1  0.821  0.680  0.783  1.0
  Rb  Rb3  1  0.321  0.820  0.217  1.0
  Yb  Yb4  1  0.613  0.481  0.242  1.0
  Yb  Yb5  1  0.113  0.019  0.758  1.0
  Yb  Yb6  1  0.387  0.519  0.758  1.0
  Yb  Yb7  1  0.887  0.981  0.242  1.0
  S  S8  1  0.627  0.311  0.068  1.0
  S  S9  1  0.127  0.189  0.932  1.0
  S  S10  1  0.373  0.689  0.932  1.0
  S  S11  1  0.873  0.811  0.068  1.0
  S  S12  1  0.812  0.125  0.477  1.0
  S  S13  1  0.312  0.375  0.523  1.0
  S  S14  1  0.188  0.875  0.523  1.0
  S  S15  1  0.688  0.625  0.477  1.0
  O  O16  1  0.502  0.304  0.167  1.0
  O  O17  1  0.002  0.196  0.833  1.0
  O  O18  1  0.498  0.696  0.833  1.0
  O  O19  1  0.998  0.804  0.167  1.0
  O  O20  1  0.571  0.359  0.917  1.0
  O  O21  1  0.071  0.141  0.083  1.0
  O  O22  1  0.429  0.641  0.083  1.0
  O  O23  1  0.929  0.859  0.917  1.0
  O  O24  1  0.695  0.159  0.120  1.0
  O  O25  1  0.195  0.341  0.880  1.0
  O  O26  1  0.305  0.841  0.880  1.0
  O  O27  1  0.805  0.659  0.120  1.0
  O  O28  1  0.741  0.416  0.069  1.0
  O  O29  1  0.241  0.084  0.931  1.0
  O  O30  1  0.259  0.584  0.931  1.0
  O  O31  1  0.759  0.916  0.069  1.0
  O  O32  1  0.895  0.109  0.606  1.0
  O  O33  1  0.395  0.391  0.394  1.0
  O  O34  1  0.105  0.891  0.394  1.0
  O  O35  1  0.605  0.609  0.606  1.0
  O  O36  1  0.712  0.260  0.422  1.0
  O  O37  1  0.212  0.240  0.578  1.0
  O  O38  1  0.288  0.740  0.578  1.0
  O  O39  1  0.788  0.760  0.422  1.0
  O  O40  1  0.912  0.135  0.359  1.0
  O  O41  1  0.412  0.365  0.641  1.0
  O  O42  1  0.088  0.865  0.641  1.0
  O  O43  1  0.588  0.635  0.359  1.0
  O  O44  1  0.707  0.994  0.526  1.0
  O  O45  1  0.207  0.506  0.474  1.0
  O  O46  1  0.293  0.006  0.474  1.0
  O  O47  1  0.793  0.494  0.526  1.0
  O  O48  1  0.878  0.459  0.346  1.0
  O  O49  1  0.378  0.041  0.654  1.0
  O  O50  1  0.122  0.541  0.654  1.0
  O  O51  1  0.622  0.959  0.346  1.0
[/CIF]
.