The crystal structure described by Rb2S2O7 crystallizes in the triclinic P-1 space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted bent 120 degrees geometry to one O(3), one O(4), one O(5), and one O(9) atom. In the second Rb site, Rb(2) is bonded in a 2-coordinate geometry to one O(1), one O(11), and one O(2) atom. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one S(1), one O(12), one O(14), one O(4), and one O(5) atom. In the fourth Rb site, Rb(4) is bonded in a distorted bent 120 degrees geometry to one S(2), one O(12), and one O(6) atom. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one Rb(3), one O(1), one O(3), one O(4), and one O(5) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Rb(4), one O(1), one O(2), one O(6), and one O(7) atom. In the third S site, S(3) is bonded in a 1-coordinate geometry to one O(12), one O(8), and one O(9) atom. In the fourth S site, S(4) is bonded in a 3-coordinate geometry to one O(10), one O(13), and one O(14) atom. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Rb(2), one S(1), one S(2), and one O(5) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Rb(2) and one S(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Rb(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(3), and one S(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(3), one S(1), and one O(1) atom. In the sixth O site, O(6) is bonded in a distorted L-shaped geometry to one Rb(4) and one S(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one S(2) atom. In the eighth O site, O(8) is bonded in a 1-coordinate geometry to one S(3) atom. In the ninth O site, O(9) is bonded in an L-shaped geometry to one Rb(1) and one S(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one S(4) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Rb(2) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Rb(3), one Rb(4), and one S(3) atom. In the thirteenth O site, O(13) is bonded in a 1-coordinate geometry to one S(4) atom. In the fourteenth O site, O(14) is bonded in a water-like geometry to one Rb(3) and one S(4) atom. is represented by the CIF file [CIF]
data_Rb2S2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.200
_cell_length_b   7.735
_cell_length_c   7.844
_cell_angle_alpha   92.246
_cell_angle_beta   99.819
_cell_angle_gamma   91.694
_symmetry_Int_Tables_number   1
_cell_volume   787.982
_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  0.875  0.132  0.116  1.0
  Rb  Rb1  1  0.379  0.155  0.777  1.0
  Rb  Rb2  1  0.796  0.342  0.556  1.0
  Rb  Rb3  1  0.294  0.372  0.215  1.0
  Rb  Rb4  1  0.706  0.628  0.785  1.0
  Rb  Rb5  1  0.204  0.658  0.444  1.0
  Rb  Rb6  1  0.621  0.845  0.223  1.0
  Rb  Rb7  1  0.125  0.868  0.884  1.0
  S  S8  1  0.861  0.085  0.658  1.0
  S  S9  1  0.386  0.107  0.278  1.0
  S  S10  1  0.760  0.391  0.065  1.0
  S  S11  1  0.275  0.417  0.702  1.0
  S  S12  1  0.725  0.583  0.298  1.0
  S  S13  1  0.240  0.609  0.935  1.0
  S  S14  1  0.614  0.893  0.722  1.0
  S  S15  1  0.139  0.915  0.342  1.0
  O  O16  1  0.271  0.024  0.410  1.0
  O  O17  1  0.504  0.050  0.192  1.0
  O  O18  1  0.995  0.054  0.772  1.0
  O  O19  1  0.921  0.127  0.495  1.0
  O  O20  1  0.753  0.147  0.750  1.0
  O  O21  1  0.261  0.143  0.160  1.0
  O  O22  1  0.468  0.185  0.407  1.0
  O  O23  1  0.612  0.309  0.030  1.0
  O  O24  1  0.894  0.362  0.181  1.0
  O  O25  1  0.187  0.343  0.819  1.0
  O  O26  1  0.443  0.397  0.649  1.0
  O  O27  1  0.822  0.447  0.916  1.0
  O  O28  1  0.657  0.472  0.184  1.0
  O  O29  1  0.164  0.442  0.559  1.0
  O  O30  1  0.836  0.558  0.441  1.0
  O  O31  1  0.343  0.528  0.816  1.0
  O  O32  1  0.178  0.553  0.084  1.0
  O  O33  1  0.557  0.603  0.351  1.0
  O  O34  1  0.813  0.657  0.181  1.0
  O  O35  1  0.106  0.638  0.819  1.0
  O  O36  1  0.388  0.691  0.970  1.0
  O  O37  1  0.532  0.815  0.593  1.0
  O  O38  1  0.739  0.857  0.840  1.0
  O  O39  1  0.247  0.853  0.250  1.0
  O  O40  1  0.079  0.873  0.505  1.0
  O  O41  1  0.005  0.946  0.228  1.0
  O  O42  1  0.496  0.950  0.808  1.0
  O  O43  1  0.729  0.976  0.590  1.0
[/CIF]
.
The crystal structure described by Rb2S2O7 crystallizes in the triclinic P-1 space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted bent 120 degrees geometry to one O(3), one O(4), one O(5), and one O(9) atom. In the second Rb site, Rb(2) is bonded in a 2-coordinate geometry to one O(1), one O(11), and one O(2) atom. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one S(1), one O(12), one O(14), one O(4), and one O(5) atom. In the fourth Rb site, Rb(4) is bonded in a distorted bent 120 degrees geometry to one S(2), one O(12), and one O(6) atom. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one Rb(3), one O(1), one O(3), one O(4), and one O(5) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Rb(4), one O(1), one O(2), one O(6), and one O(7) atom. In the third S site, S(3) is bonded in a 1-coordinate geometry to one O(12), one O(8), and one O(9) atom. In the fourth S site, S(4) is bonded in a 3-coordinate geometry to one O(10), one O(13), and one O(14) atom. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Rb(2), one S(1), one S(2), and one O(5) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Rb(2) and one S(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Rb(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(3), and one S(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(3), one S(1), and one O(1) atom. In the sixth O site, O(6) is bonded in a distorted L-shaped geometry to one Rb(4) and one S(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one S(2) atom. In the eighth O site, O(8) is bonded in a 1-coordinate geometry to one S(3) atom. In the ninth O site, O(9) is bonded in an L-shaped geometry to one Rb(1) and one S(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one S(4) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Rb(2) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Rb(3), one Rb(4), and one S(3) atom. In the thirteenth O site, O(13) is bonded in a 1-coordinate geometry to one S(4) atom. In the fourteenth O site, O(14) is bonded in a water-like geometry to one Rb(3) and one S(4) atom. is represented by the CIF file [CIF]
data_Rb2S2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.200
_cell_length_b   7.735
_cell_length_c   7.844
_cell_angle_alpha   92.246
_cell_angle_beta   99.819
_cell_angle_gamma   91.694
_symmetry_Int_Tables_number   1
_cell_volume   787.982
_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  0.875  0.132  0.116  1.0
  Rb  Rb1  1  0.379  0.155  0.777  1.0
  Rb  Rb2  1  0.796  0.342  0.556  1.0
  Rb  Rb3  1  0.294  0.372  0.215  1.0
  Rb  Rb4  1  0.706  0.628  0.785  1.0
  Rb  Rb5  1  0.204  0.658  0.444  1.0
  Rb  Rb6  1  0.621  0.845  0.223  1.0
  Rb  Rb7  1  0.125  0.868  0.884  1.0
  S  S8  1  0.861  0.085  0.658  1.0
  S  S9  1  0.386  0.107  0.278  1.0
  S  S10  1  0.760  0.391  0.065  1.0
  S  S11  1  0.275  0.417  0.702  1.0
  S  S12  1  0.725  0.583  0.298  1.0
  S  S13  1  0.240  0.609  0.935  1.0
  S  S14  1  0.614  0.893  0.722  1.0
  S  S15  1  0.139  0.915  0.342  1.0
  O  O16  1  0.271  0.024  0.410  1.0
  O  O17  1  0.504  0.050  0.192  1.0
  O  O18  1  0.995  0.054  0.772  1.0
  O  O19  1  0.921  0.127  0.495  1.0
  O  O20  1  0.753  0.147  0.750  1.0
  O  O21  1  0.261  0.143  0.160  1.0
  O  O22  1  0.468  0.185  0.407  1.0
  O  O23  1  0.612  0.309  0.030  1.0
  O  O24  1  0.894  0.362  0.181  1.0
  O  O25  1  0.187  0.343  0.819  1.0
  O  O26  1  0.443  0.397  0.649  1.0
  O  O27  1  0.822  0.447  0.916  1.0
  O  O28  1  0.657  0.472  0.184  1.0
  O  O29  1  0.164  0.442  0.559  1.0
  O  O30  1  0.836  0.558  0.441  1.0
  O  O31  1  0.343  0.528  0.816  1.0
  O  O32  1  0.178  0.553  0.084  1.0
  O  O33  1  0.557  0.603  0.351  1.0
  O  O34  1  0.813  0.657  0.181  1.0
  O  O35  1  0.106  0.638  0.819  1.0
  O  O36  1  0.388  0.691  0.970  1.0
  O  O37  1  0.532  0.815  0.593  1.0
  O  O38  1  0.739  0.857  0.840  1.0
  O  O39  1  0.247  0.853  0.250  1.0
  O  O40  1  0.079  0.873  0.505  1.0
  O  O41  1  0.005  0.946  0.228  1.0
  O  O42  1  0.496  0.950  0.808  1.0
  O  O43  1  0.729  0.976  0.590  1.0
[/CIF]
.