The compound described by K2SO3 crystallizes in the monoclinic Cc space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one S(1), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. S(1) is bonded in a distorted water-like geometry to one K(1), one O(1), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one K(2), two equivalent K(1), and one S(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent K(1) and two equivalent K(2) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one S(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2SO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.194
_cell_length_b   7.194
_cell_length_c   6.292
_cell_angle_alpha   89.935
_cell_angle_beta   89.935
_cell_angle_gamma   112.908
_symmetry_Int_Tables_number   1
_cell_volume   299.907
_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
  K  K0  1  0.930  0.084  0.470  1.0
  K  K1  1  0.635  0.439  0.977  1.0
  K  K2  1  0.084  0.930  0.970  1.0
  K  K3  1  0.439  0.635  0.477  1.0
  S  S4  1  0.447  0.129  0.471  1.0
  S  S5  1  0.129  0.447  0.971  1.0
  O  O6  1  0.951  0.287  0.864  1.0
  O  O7  1  0.789  0.735  0.690  1.0
  O  O8  1  0.359  0.217  0.644  1.0
  O  O9  1  0.217  0.359  0.144  1.0
  O  O10  1  0.287  0.951  0.364  1.0
  O  O11  1  0.735  0.789  0.190  1.0
[/CIF]
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The compound described by K2SO3 crystallizes in the monoclinic Cc space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one S(1), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one O(1), two equivalent O(2), and two equivalent O(3) atoms. S(1) is bonded in a distorted water-like geometry to one K(1), one O(1), and one O(3) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one K(2), two equivalent K(1), and one S(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent K(1) and two equivalent K(2) atoms. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent K(1), two equivalent K(2), and one S(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2SO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.194
_cell_length_b   7.194
_cell_length_c   6.292
_cell_angle_alpha   89.935
_cell_angle_beta   89.935
_cell_angle_gamma   112.908
_symmetry_Int_Tables_number   1
_cell_volume   299.907
_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
  K  K0  1  0.930  0.084  0.470  1.0
  K  K1  1  0.635  0.439  0.977  1.0
  K  K2  1  0.084  0.930  0.970  1.0
  K  K3  1  0.439  0.635  0.477  1.0
  S  S4  1  0.447  0.129  0.471  1.0
  S  S5  1  0.129  0.447  0.971  1.0
  O  O6  1  0.951  0.287  0.864  1.0
  O  O7  1  0.789  0.735  0.690  1.0
  O  O8  1  0.359  0.217  0.644  1.0
  O  O9  1  0.217  0.359  0.144  1.0
  O  O10  1  0.287  0.951  0.364  1.0
  O  O11  1  0.735  0.789  0.190  1.0
[/CIF]
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