The crystal structure described by KSmS2O9 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. Sm(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), 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(3), one O(4), and one O(9) atom. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(2), one O(5), one O(6), and one O(8) atom. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a 1-coordinate geometry to one K(1), one Sm(1), and one S(2) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one Sm(1), and one S(2) atom. In the third O site, O(7) is bonded in a distorted bent 150 degrees geometry to one K(1) and one Sm(1) atom. In the fourth O site, O(8) is bonded in a distorted single-bond geometry to one K(1), one Sm(1), and one S(2) atom. In the fifth O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Sm(1), and one S(1) atom. In the sixth O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one Sm(1), and one S(1) atom. In the seventh O site, O(2) is bonded in a distorted single-bond geometry to one K(1), one Sm(1), and one S(2) atom. In the eighth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Sm(1), and one S(1) atom. In the ninth O site, O(4) is bonded in a 1-coordinate geometry to one K(1), one Sm(1), and one S(1) atom. is represented by the CIF card [CIF]
data_KSmS2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.802
_cell_length_b   10.007
_cell_length_c   10.344
_cell_angle_alpha   62.603
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   808.923
_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
  K  K0  1  0.303  0.273  0.698  1.0
  K  K1  1  0.697  0.727  0.302  1.0
  K  K2  1  0.803  0.727  0.802  1.0
  K  K3  1  0.197  0.273  0.198  1.0
  Sm  Sm4  1  0.358  0.762  0.974  1.0
  Sm  Sm5  1  0.642  0.238  0.026  1.0
  Sm  Sm6  1  0.858  0.238  0.526  1.0
  Sm  Sm7  1  0.142  0.762  0.474  1.0
  S  S8  1  0.126  0.557  0.320  1.0
  S  S9  1  0.874  0.443  0.680  1.0
  S  S10  1  0.626  0.443  0.180  1.0
  S  S11  1  0.374  0.557  0.820  1.0
  S  S12  1  0.186  0.972  0.621  1.0
  S  S13  1  0.814  0.028  0.379  1.0
  S  S14  1  0.686  0.028  0.879  1.0
  S  S15  1  0.314  0.972  0.121  1.0
  O  O16  1  0.053  0.407  0.372  1.0
  O  O17  1  0.947  0.593  0.628  1.0
  O  O18  1  0.553  0.593  0.128  1.0
  O  O19  1  0.447  0.407  0.872  1.0
  O  O20  1  0.409  0.832  0.172  1.0
  O  O21  1  0.591  0.168  0.828  1.0
  O  O22  1  0.909  0.168  0.328  1.0
  O  O23  1  0.091  0.832  0.672  1.0
  O  O24  1  0.015  0.674  0.307  1.0
  O  O25  1  0.985  0.326  0.693  1.0
  O  O26  1  0.515  0.326  0.193  1.0
  O  O27  1  0.485  0.674  0.807  1.0
  O  O28  1  0.198  0.593  0.176  1.0
  O  O29  1  0.802  0.407  0.824  1.0
  O  O30  1  0.698  0.407  0.324  1.0
  O  O31  1  0.302  0.593  0.676  1.0
  O  O32  1  0.307  0.952  0.727  1.0
  O  O33  1  0.693  0.048  0.273  1.0
  O  O34  1  0.807  0.048  0.773  1.0
  O  O35  1  0.193  0.952  0.227  1.0
  O  O36  1  0.594  0.896  0.901  1.0
  O  O37  1  0.406  0.104  0.099  1.0
  O  O38  1  0.094  0.104  0.599  1.0
  O  O39  1  0.906  0.896  0.401  1.0
  O  O40  1  0.084  0.793  0.962  1.0
  O  O41  1  0.916  0.207  0.038  1.0
  O  O42  1  0.584  0.207  0.538  1.0
  O  O43  1  0.416  0.793  0.462  1.0
  O  O44  1  0.750  0.003  0.023  1.0
  O  O45  1  0.250  0.997  0.977  1.0
  O  O46  1  0.250  0.997  0.477  1.0
  O  O47  1  0.750  0.003  0.523  1.0
  O  O48  1  0.244  0.553  0.426  1.0
  O  O49  1  0.756  0.447  0.574  1.0
  O  O50  1  0.744  0.447  0.074  1.0
  O  O51  1  0.256  0.553  0.926  1.0
[/CIF]
.
The crystal structure described by KSmS2O9 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. Sm(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), 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(3), one O(4), and one O(9) atom. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(2), one O(5), one O(6), and one O(8) atom. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a 1-coordinate geometry to one K(1), one Sm(1), and one S(2) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one K(1), one Sm(1), and one S(2) atom. In the third O site, O(7) is bonded in a distorted bent 150 degrees geometry to one K(1) and one Sm(1) atom. In the fourth O site, O(8) is bonded in a distorted single-bond geometry to one K(1), one Sm(1), and one S(2) atom. In the fifth O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Sm(1), and one S(1) atom. In the sixth O site, O(9) is bonded in a distorted single-bond geometry to one K(1), one Sm(1), and one S(1) atom. In the seventh O site, O(2) is bonded in a distorted single-bond geometry to one K(1), one Sm(1), and one S(2) atom. In the eighth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one Sm(1), and one S(1) atom. In the ninth O site, O(4) is bonded in a 1-coordinate geometry to one K(1), one Sm(1), and one S(1) atom. is represented by the CIF card [CIF]
data_KSmS2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.802
_cell_length_b   10.007
_cell_length_c   10.344
_cell_angle_alpha   62.603
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   808.923
_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
  K  K0  1  0.303  0.273  0.698  1.0
  K  K1  1  0.697  0.727  0.302  1.0
  K  K2  1  0.803  0.727  0.802  1.0
  K  K3  1  0.197  0.273  0.198  1.0
  Sm  Sm4  1  0.358  0.762  0.974  1.0
  Sm  Sm5  1  0.642  0.238  0.026  1.0
  Sm  Sm6  1  0.858  0.238  0.526  1.0
  Sm  Sm7  1  0.142  0.762  0.474  1.0
  S  S8  1  0.126  0.557  0.320  1.0
  S  S9  1  0.874  0.443  0.680  1.0
  S  S10  1  0.626  0.443  0.180  1.0
  S  S11  1  0.374  0.557  0.820  1.0
  S  S12  1  0.186  0.972  0.621  1.0
  S  S13  1  0.814  0.028  0.379  1.0
  S  S14  1  0.686  0.028  0.879  1.0
  S  S15  1  0.314  0.972  0.121  1.0
  O  O16  1  0.053  0.407  0.372  1.0
  O  O17  1  0.947  0.593  0.628  1.0
  O  O18  1  0.553  0.593  0.128  1.0
  O  O19  1  0.447  0.407  0.872  1.0
  O  O20  1  0.409  0.832  0.172  1.0
  O  O21  1  0.591  0.168  0.828  1.0
  O  O22  1  0.909  0.168  0.328  1.0
  O  O23  1  0.091  0.832  0.672  1.0
  O  O24  1  0.015  0.674  0.307  1.0
  O  O25  1  0.985  0.326  0.693  1.0
  O  O26  1  0.515  0.326  0.193  1.0
  O  O27  1  0.485  0.674  0.807  1.0
  O  O28  1  0.198  0.593  0.176  1.0
  O  O29  1  0.802  0.407  0.824  1.0
  O  O30  1  0.698  0.407  0.324  1.0
  O  O31  1  0.302  0.593  0.676  1.0
  O  O32  1  0.307  0.952  0.727  1.0
  O  O33  1  0.693  0.048  0.273  1.0
  O  O34  1  0.807  0.048  0.773  1.0
  O  O35  1  0.193  0.952  0.227  1.0
  O  O36  1  0.594  0.896  0.901  1.0
  O  O37  1  0.406  0.104  0.099  1.0
  O  O38  1  0.094  0.104  0.599  1.0
  O  O39  1  0.906  0.896  0.401  1.0
  O  O40  1  0.084  0.793  0.962  1.0
  O  O41  1  0.916  0.207  0.038  1.0
  O  O42  1  0.584  0.207  0.538  1.0
  O  O43  1  0.416  0.793  0.462  1.0
  O  O44  1  0.750  0.003  0.023  1.0
  O  O45  1  0.250  0.997  0.977  1.0
  O  O46  1  0.250  0.997  0.477  1.0
  O  O47  1  0.750  0.003  0.523  1.0
  O  O48  1  0.244  0.553  0.426  1.0
  O  O49  1  0.756  0.447  0.574  1.0
  O  O50  1  0.744  0.447  0.074  1.0
  O  O51  1  0.256  0.553  0.926  1.0
[/CIF]
.