The compound described by Na2S2O5 crystallizes in the triclinic P1 space group. There are twelve inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one O(12), one O(16), one O(21), one O(22), one O(25), and one O(5) atom. In the second Na site, Na(2) is bonded in a distorted octahedral geometry to one O(10), one O(13), one O(18), one O(20), one O(27), and one O(6) atom. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one O(11), one O(17), one O(19), one O(23), one O(26), and one O(4) atom. In the fourth Na site, Na(4) is bonded to one O(11), one O(2), one O(23), one O(26), and one O(8) atom to form a mixture of distorted corner and edge-sharing NaO5 trigonal bipyramids. In the fifth Na site, Na(5) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(12), one O(22), one O(25), and one O(7) atom. In the sixth Na site, Na(6) is bonded in a 5-coordinate geometry to one O(10), one O(13), one O(27), one O(3), and one O(9) atom. In the seventh Na site, Na(7) is bonded in a 4-coordinate geometry to one O(16), one O(3), one O(30), and one O(9) atom. In the eighth Na site, Na(8) is bonded in a 5-coordinate geometry to one O(1), one O(14), one O(17), one O(28), and one O(7) atom. In the ninth Na site, Na(9) is bonded in a 5-coordinate geometry to one O(18), one O(2), one O(29), one O(6), and one O(8) atom. In the tenth Na site, Na(10) is bonded in a 6-coordinate geometry to one O(1), one O(12), one O(14), one O(25), one O(28), and one O(7) atom. In the eleventh Na site, Na(11) is bonded to one O(2), one O(26), one O(29), and one O(8) atom to form a mixture of distorted corner and edge-sharing NaO4 trigonal pyramids. In the twelfth Na site, Na(12) is bonded in a 6-coordinate geometry to one O(15), one O(24), one O(27), one O(3), one O(30), and one O(9) atom. There are twelve inequivalent S sites. In the first S site, S(1) is bonded in a water-like geometry to one O(1) and one O(7) atom. In the second S site, S(2) is bonded in a water-like geometry to one O(2) and one O(8) atom. In the third S site, S(3) is bonded in a water-like geometry to one O(3) and one O(9) atom. In the fourth S site, S(4) is bonded in a trigonal non-coplanar geometry to one O(14), one O(28), and one O(4) atom. In the fifth S site, S(5) is bonded in a bent 120 degrees geometry to one O(29) and one O(6) atom. In the sixth S site, S(6) is bonded in a water-like geometry to one O(30) and one O(5) atom. In the seventh S site, S(7) is bonded in a water-like geometry to one O(12) and one O(25) atom. In the eighth S site, S(8) is bonded in a water-like geometry to one O(11) and one O(26) atom. In the ninth S site, S(9) is bonded in a water-like geometry to one O(13) and one O(27) atom. In the tenth S site, S(10) is bonded in a water-like geometry to one O(21) and one O(22) atom. In the eleventh S site, S(11) is bonded in a water-like geometry to one O(19) and one O(23) atom. In the twelfth S site, S(12) is bonded in a trigonal non-coplanar geometry to one O(18), one O(20), and one O(24) atom. There are thirty inequivalent O sites. In the first O site, O(1) is bonded to one Na(10), one Na(5), one Na(8), and one S(1) atom to form distorted edge-sharing ONa3S tetrahedra. In the second O site, O(2) is bonded to one Na(11), one Na(4), one Na(9), and one S(2) atom to form distorted edge-sharing ONa3S trigonal pyramids. In the third O site, O(3) is bonded to one Na(12), one Na(6), one Na(7), and one S(3) atom to form distorted edge-sharing ONa3S tetrahedra. In the fourth O site, O(4) is bonded in a linear geometry to one Na(3) and one S(4) atom. In the fifth O site, O(5) is bonded in a linear geometry to one Na(1) and one S(6) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(2), one Na(9), and one S(5) atom. In the seventh O site, O(7) is bonded to one Na(10), one Na(5), one Na(8), and one S(1) atom to form a mixture of distorted corner and edge-sharing ONa3S tetrahedra. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Na(11), one Na(4), one Na(9), and one S(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Na(12), one Na(6), one Na(7), and one S(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Na(2), one Na(6), and one O(15) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Na(3), one Na(4), and one S(8) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Na(1), one Na(10), one Na(5), and one S(7) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Na(2), one Na(6), and one S(9) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one Na(10), one Na(8), and one S(4) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 120 degrees geometry to one Na(12) and one O(10) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Na(1), one Na(7), and one O(21) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Na(3), one Na(8), and one O(19) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one Na(2), one Na(9), and one S(12) atom. In the nineteenth O site, O(19) is bonded in a distorted single-bond geometry to one Na(3), one S(11), and one O(17) atom. In the twentieth O site, O(20) is bonded in a distorted bent 120 degrees geometry to one Na(2) and one S(12) atom. In the twenty-first O site, O(21) is bonded in a distorted single-bond geometry to one Na(1), one S(10), and one O(16) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one Na(1), one Na(5), and one S(10) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one Na(3), one Na(4), and one S(11) atom. In the twenty-fourth O site, O(24) is bonded in a distorted bent 150 degrees geometry to one Na(12) and one S(12) atom. In the twenty-fifth O site, O(25) is bonded to one Na(1), one Na(10), one Na(5), and one S(7) atom to form a mixture of distorted corner and edge-sharing ONa3S tetrahedra. In the twenty-sixth O site, O(26) is bonded to one Na(11), one Na(3), one Na(4), and one S(8) atom to form distorted edge-sharing ONa3S tetrahedra. In the twenty-seventh O site, O(27) is bonded to one Na(12), one Na(2), one Na(6), and one S(9) atom to form distorted edge-sharing ONa3S tetrahedra. In the twenty-eighth O site, O(28) is bonded in a distorted trigonal planar geometry to one Na(10), one Na(8), and one S(4) atom. In the twenty-ninth O site, O(29) is bonded in a trigonal planar geometry to one Na(11), one Na(9), and one S(5) atom. In the thirtieth O site, O(30) is bonded in a trigonal planar geometry to one Na(12), one Na(7), and one S(6) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2S2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.659
_cell_length_b   6.189
_cell_length_c   26.833
_cell_angle_alpha   103.015
_cell_angle_beta   92.812
_cell_angle_gamma   90.781
_symmetry_Int_Tables_number   1
_cell_volume   914.256
_cell_formula_units_Z   6
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
  Na  Na0  1  0.253  0.886  0.439  1.0
  Na  Na1  1  0.277  0.884  0.787  1.0
  Na  Na2  1  0.272  0.887  0.109  1.0
  Na  Na3  1  0.246  0.351  0.013  1.0
  Na  Na4  1  0.226  0.340  0.344  1.0
  Na  Na5  1  0.207  0.368  0.686  1.0
  Na  Na6  1  0.701  0.155  0.563  1.0
  Na  Na7  1  0.717  0.110  0.229  1.0
  Na  Na8  1  0.741  0.122  0.888  1.0
  Na  Na9  1  0.750  0.689  0.310  1.0
  Na  Na10  1  0.791  0.666  0.978  1.0
  Na  Na11  1  0.765  0.713  0.660  1.0
  S  S12  1  0.232  0.425  0.236  1.0
  S  S13  1  0.264  0.443  0.908  1.0
  S  S14  1  0.216  0.444  0.575  1.0
  S  S15  1  0.230  0.807  0.243  1.0
  S  S16  1  0.234  0.840  0.923  1.0
  S  S17  1  0.170  0.845  0.574  1.0
  S  S18  1  0.744  0.560  0.424  1.0
  S  S19  1  0.763  0.555  0.094  1.0
  S  S20  1  0.749  0.555  0.771  1.0
  S  S21  1  0.761  0.156  0.405  1.0
  S  S22  1  0.781  0.150  0.071  1.0
  S  S23  1  0.816  0.188  0.774  1.0
  O  O24  1  0.015  0.401  0.266  1.0
  O  O25  1  0.045  0.392  0.935  1.0
  O  O26  1  0.004  0.419  0.606  1.0
  O  O27  1  0.226  0.841  0.190  1.0
  O  O28  1  0.159  0.846  0.518  1.0
  O  O29  1  0.337  0.892  0.876  1.0
  O  O30  1  0.452  0.410  0.270  1.0
  O  O31  1  0.484  0.424  0.943  1.0
  O  O32  1  0.442  0.436  0.607  1.0
  O  O33  1  0.325  0.030  0.702  1.0
  O  O34  1  0.529  0.589  0.067  1.0
  O  O35  1  0.513  0.588  0.395  1.0
  O  O36  1  0.513  0.550  0.742  1.0
  O  O37  1  0.450  0.900  0.273  1.0
  O  O38  1  0.428  0.944  0.661  1.0
  O  O39  1  0.558  0.142  0.480  1.0
  O  O40  1  0.585  0.143  0.147  1.0
  O  O41  1  0.619  0.106  0.801  1.0
  O  O42  1  0.825  0.095  0.127  1.0
  O  O43  1  0.038  0.204  0.807  1.0
  O  O44  1  0.802  0.106  0.461  1.0
  O  O45  1  0.998  0.113  0.381  1.0
  O  O46  1  0.017  0.108  0.047  1.0
  O  O47  1  0.842  0.061  0.722  1.0
  O  O48  1  0.950  0.600  0.393  1.0
  O  O49  1  0.965  0.601  0.062  1.0
  O  O50  1  0.946  0.586  0.736  1.0
  O  O51  1  0.012  0.888  0.269  1.0
  O  O52  1  0.966  0.860  0.923  1.0
  O  O53  1  0.932  0.887  0.597  1.0
[/CIF]
.
The compound described by Na2S2O5 crystallizes in the triclinic P1 space group. There are twelve inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one O(12), one O(16), one O(21), one O(22), one O(25), and one O(5) atom. In the second Na site, Na(2) is bonded in a distorted octahedral geometry to one O(10), one O(13), one O(18), one O(20), one O(27), and one O(6) atom. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to one O(11), one O(17), one O(19), one O(23), one O(26), and one O(4) atom. In the fourth Na site, Na(4) is bonded to one O(11), one O(2), one O(23), one O(26), and one O(8) atom to form a mixture of distorted corner and edge-sharing NaO5 trigonal bipyramids. In the fifth Na site, Na(5) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(12), one O(22), one O(25), and one O(7) atom. In the sixth Na site, Na(6) is bonded in a 5-coordinate geometry to one O(10), one O(13), one O(27), one O(3), and one O(9) atom. In the seventh Na site, Na(7) is bonded in a 4-coordinate geometry to one O(16), one O(3), one O(30), and one O(9) atom. In the eighth Na site, Na(8) is bonded in a 5-coordinate geometry to one O(1), one O(14), one O(17), one O(28), and one O(7) atom. In the ninth Na site, Na(9) is bonded in a 5-coordinate geometry to one O(18), one O(2), one O(29), one O(6), and one O(8) atom. In the tenth Na site, Na(10) is bonded in a 6-coordinate geometry to one O(1), one O(12), one O(14), one O(25), one O(28), and one O(7) atom. In the eleventh Na site, Na(11) is bonded to one O(2), one O(26), one O(29), and one O(8) atom to form a mixture of distorted corner and edge-sharing NaO4 trigonal pyramids. In the twelfth Na site, Na(12) is bonded in a 6-coordinate geometry to one O(15), one O(24), one O(27), one O(3), one O(30), and one O(9) atom. There are twelve inequivalent S sites. In the first S site, S(1) is bonded in a water-like geometry to one O(1) and one O(7) atom. In the second S site, S(2) is bonded in a water-like geometry to one O(2) and one O(8) atom. In the third S site, S(3) is bonded in a water-like geometry to one O(3) and one O(9) atom. In the fourth S site, S(4) is bonded in a trigonal non-coplanar geometry to one O(14), one O(28), and one O(4) atom. In the fifth S site, S(5) is bonded in a bent 120 degrees geometry to one O(29) and one O(6) atom. In the sixth S site, S(6) is bonded in a water-like geometry to one O(30) and one O(5) atom. In the seventh S site, S(7) is bonded in a water-like geometry to one O(12) and one O(25) atom. In the eighth S site, S(8) is bonded in a water-like geometry to one O(11) and one O(26) atom. In the ninth S site, S(9) is bonded in a water-like geometry to one O(13) and one O(27) atom. In the tenth S site, S(10) is bonded in a water-like geometry to one O(21) and one O(22) atom. In the eleventh S site, S(11) is bonded in a water-like geometry to one O(19) and one O(23) atom. In the twelfth S site, S(12) is bonded in a trigonal non-coplanar geometry to one O(18), one O(20), and one O(24) atom. There are thirty inequivalent O sites. In the first O site, O(1) is bonded to one Na(10), one Na(5), one Na(8), and one S(1) atom to form distorted edge-sharing ONa3S tetrahedra. In the second O site, O(2) is bonded to one Na(11), one Na(4), one Na(9), and one S(2) atom to form distorted edge-sharing ONa3S trigonal pyramids. In the third O site, O(3) is bonded to one Na(12), one Na(6), one Na(7), and one S(3) atom to form distorted edge-sharing ONa3S tetrahedra. In the fourth O site, O(4) is bonded in a linear geometry to one Na(3) and one S(4) atom. In the fifth O site, O(5) is bonded in a linear geometry to one Na(1) and one S(6) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(2), one Na(9), and one S(5) atom. In the seventh O site, O(7) is bonded to one Na(10), one Na(5), one Na(8), and one S(1) atom to form a mixture of distorted corner and edge-sharing ONa3S tetrahedra. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Na(11), one Na(4), one Na(9), and one S(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Na(12), one Na(6), one Na(7), and one S(3) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Na(2), one Na(6), and one O(15) atom. In the eleventh O site, O(11) is bonded in a 3-coordinate geometry to one Na(3), one Na(4), and one S(8) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Na(1), one Na(10), one Na(5), and one S(7) atom. In the thirteenth O site, O(13) is bonded in a 3-coordinate geometry to one Na(2), one Na(6), and one S(9) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one Na(10), one Na(8), and one S(4) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 120 degrees geometry to one Na(12) and one O(10) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Na(1), one Na(7), and one O(21) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Na(3), one Na(8), and one O(19) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one Na(2), one Na(9), and one S(12) atom. In the nineteenth O site, O(19) is bonded in a distorted single-bond geometry to one Na(3), one S(11), and one O(17) atom. In the twentieth O site, O(20) is bonded in a distorted bent 120 degrees geometry to one Na(2) and one S(12) atom. In the twenty-first O site, O(21) is bonded in a distorted single-bond geometry to one Na(1), one S(10), and one O(16) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one Na(1), one Na(5), and one S(10) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one Na(3), one Na(4), and one S(11) atom. In the twenty-fourth O site, O(24) is bonded in a distorted bent 150 degrees geometry to one Na(12) and one S(12) atom. In the twenty-fifth O site, O(25) is bonded to one Na(1), one Na(10), one Na(5), and one S(7) atom to form a mixture of distorted corner and edge-sharing ONa3S tetrahedra. In the twenty-sixth O site, O(26) is bonded to one Na(11), one Na(3), one Na(4), and one S(8) atom to form distorted edge-sharing ONa3S tetrahedra. In the twenty-seventh O site, O(27) is bonded to one Na(12), one Na(2), one Na(6), and one S(9) atom to form distorted edge-sharing ONa3S tetrahedra. In the twenty-eighth O site, O(28) is bonded in a distorted trigonal planar geometry to one Na(10), one Na(8), and one S(4) atom. In the twenty-ninth O site, O(29) is bonded in a trigonal planar geometry to one Na(11), one Na(9), and one S(5) atom. In the thirtieth O site, O(30) is bonded in a trigonal planar geometry to one Na(12), one Na(7), and one S(6) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2S2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.659
_cell_length_b   6.189
_cell_length_c   26.833
_cell_angle_alpha   103.015
_cell_angle_beta   92.812
_cell_angle_gamma   90.781
_symmetry_Int_Tables_number   1
_cell_volume   914.256
_cell_formula_units_Z   6
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
  Na  Na0  1  0.253  0.886  0.439  1.0
  Na  Na1  1  0.277  0.884  0.787  1.0
  Na  Na2  1  0.272  0.887  0.109  1.0
  Na  Na3  1  0.246  0.351  0.013  1.0
  Na  Na4  1  0.226  0.340  0.344  1.0
  Na  Na5  1  0.207  0.368  0.686  1.0
  Na  Na6  1  0.701  0.155  0.563  1.0
  Na  Na7  1  0.717  0.110  0.229  1.0
  Na  Na8  1  0.741  0.122  0.888  1.0
  Na  Na9  1  0.750  0.689  0.310  1.0
  Na  Na10  1  0.791  0.666  0.978  1.0
  Na  Na11  1  0.765  0.713  0.660  1.0
  S  S12  1  0.232  0.425  0.236  1.0
  S  S13  1  0.264  0.443  0.908  1.0
  S  S14  1  0.216  0.444  0.575  1.0
  S  S15  1  0.230  0.807  0.243  1.0
  S  S16  1  0.234  0.840  0.923  1.0
  S  S17  1  0.170  0.845  0.574  1.0
  S  S18  1  0.744  0.560  0.424  1.0
  S  S19  1  0.763  0.555  0.094  1.0
  S  S20  1  0.749  0.555  0.771  1.0
  S  S21  1  0.761  0.156  0.405  1.0
  S  S22  1  0.781  0.150  0.071  1.0
  S  S23  1  0.816  0.188  0.774  1.0
  O  O24  1  0.015  0.401  0.266  1.0
  O  O25  1  0.045  0.392  0.935  1.0
  O  O26  1  0.004  0.419  0.606  1.0
  O  O27  1  0.226  0.841  0.190  1.0
  O  O28  1  0.159  0.846  0.518  1.0
  O  O29  1  0.337  0.892  0.876  1.0
  O  O30  1  0.452  0.410  0.270  1.0
  O  O31  1  0.484  0.424  0.943  1.0
  O  O32  1  0.442  0.436  0.607  1.0
  O  O33  1  0.325  0.030  0.702  1.0
  O  O34  1  0.529  0.589  0.067  1.0
  O  O35  1  0.513  0.588  0.395  1.0
  O  O36  1  0.513  0.550  0.742  1.0
  O  O37  1  0.450  0.900  0.273  1.0
  O  O38  1  0.428  0.944  0.661  1.0
  O  O39  1  0.558  0.142  0.480  1.0
  O  O40  1  0.585  0.143  0.147  1.0
  O  O41  1  0.619  0.106  0.801  1.0
  O  O42  1  0.825  0.095  0.127  1.0
  O  O43  1  0.038  0.204  0.807  1.0
  O  O44  1  0.802  0.106  0.461  1.0
  O  O45  1  0.998  0.113  0.381  1.0
  O  O46  1  0.017  0.108  0.047  1.0
  O  O47  1  0.842  0.061  0.722  1.0
  O  O48  1  0.950  0.600  0.393  1.0
  O  O49  1  0.965  0.601  0.062  1.0
  O  O50  1  0.946  0.586  0.736  1.0
  O  O51  1  0.012  0.888  0.269  1.0
  O  O52  1  0.966  0.860  0.923  1.0
  O  O53  1  0.932  0.887  0.597  1.0
[/CIF]
.