The crystal structure described by K2H4O5I crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one H(4), two equivalent H(1), one O(1), two equivalent O(3), and two equivalent O(4) atoms. In the second K site, K(2) is bonded in a 4-coordinate geometry to one H(4), one O(1), one O(2), and one O(5) atom. There are four inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one H(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(5) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(2) and one O(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one K(1), one K(2), and one O(1) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one H(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(2), one H(3), and one I(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent K(1) and one I(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to two equivalent K(1) and one I(1) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one K(2), one H(2), and one H(3) atom. I(1) is bonded in a 3-coordinate geometry to one O(2), one O(3), and one O(4) atom. is represented by the CIF card [CIF]
data_K2H4IO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.743
_cell_length_b   6.922
_cell_length_c   9.061
_cell_angle_alpha   88.802
_cell_angle_beta   94.201
_cell_angle_gamma   113.644
_symmetry_Int_Tables_number   1
_cell_volume   386.363
_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  0.791  0.612  0.575  1.0
  K  K1  1  0.209  0.388  0.425  1.0
  K  K2  1  0.211  0.261  0.925  1.0
  K  K3  1  0.789  0.739  0.075  1.0
  H  H4  1  0.945  0.989  0.481  1.0
  H  H5  1  0.055  0.011  0.519  1.0
  H  H6  1  0.900  0.353  0.133  1.0
  H  H7  1  0.100  0.647  0.867  1.0
  H  H8  1  0.688  0.268  0.023  1.0
  H  H9  1  0.312  0.732  0.977  1.0
  H  H10  1  0.069  0.013  0.257  1.0
  H  H11  1  0.931  0.987  0.743  1.0
  I  I12  1  0.399  0.914  0.306  1.0
  I  I13  1  0.601  0.086  0.694  1.0
  O  O14  1  0.826  0.901  0.811  1.0
  O  O15  1  0.174  0.099  0.189  1.0
  O  O16  1  0.422  0.764  0.146  1.0
  O  O17  1  0.578  0.236  0.854  1.0
  O  O18  1  0.873  0.269  0.647  1.0
  O  O19  1  0.127  0.731  0.353  1.0
  O  O20  1  0.556  0.814  0.444  1.0
  O  O21  1  0.444  0.186  0.556  1.0
  O  O22  1  0.255  0.677  0.873  1.0
  O  O23  1  0.745  0.323  0.127  1.0
[/CIF]
.
The crystal structure described by K2H4O5I crystallizes in the triclinic P-1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one H(4), two equivalent H(1), one O(1), two equivalent O(3), and two equivalent O(4) atoms. In the second K site, K(2) is bonded in a 4-coordinate geometry to one H(4), one O(1), one O(2), and one O(5) atom. There are four inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to two equivalent K(1) and one H(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(5) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(2) and one O(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one K(1), one K(2), and one O(1) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one H(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(2), one H(3), and one I(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent K(1) and one I(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to two equivalent K(1) and one I(1) atom. In the fifth O site, O(5) is bonded in a water-like geometry to one K(2), one H(2), and one H(3) atom. I(1) is bonded in a 3-coordinate geometry to one O(2), one O(3), and one O(4) atom. is represented by the CIF card [CIF]
data_K2H4IO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.743
_cell_length_b   6.922
_cell_length_c   9.061
_cell_angle_alpha   88.802
_cell_angle_beta   94.201
_cell_angle_gamma   113.644
_symmetry_Int_Tables_number   1
_cell_volume   386.363
_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  0.791  0.612  0.575  1.0
  K  K1  1  0.209  0.388  0.425  1.0
  K  K2  1  0.211  0.261  0.925  1.0
  K  K3  1  0.789  0.739  0.075  1.0
  H  H4  1  0.945  0.989  0.481  1.0
  H  H5  1  0.055  0.011  0.519  1.0
  H  H6  1  0.900  0.353  0.133  1.0
  H  H7  1  0.100  0.647  0.867  1.0
  H  H8  1  0.688  0.268  0.023  1.0
  H  H9  1  0.312  0.732  0.977  1.0
  H  H10  1  0.069  0.013  0.257  1.0
  H  H11  1  0.931  0.987  0.743  1.0
  I  I12  1  0.399  0.914  0.306  1.0
  I  I13  1  0.601  0.086  0.694  1.0
  O  O14  1  0.826  0.901  0.811  1.0
  O  O15  1  0.174  0.099  0.189  1.0
  O  O16  1  0.422  0.764  0.146  1.0
  O  O17  1  0.578  0.236  0.854  1.0
  O  O18  1  0.873  0.269  0.647  1.0
  O  O19  1  0.127  0.731  0.353  1.0
  O  O20  1  0.556  0.814  0.444  1.0
  O  O21  1  0.444  0.186  0.556  1.0
  O  O22  1  0.255  0.677  0.873  1.0
  O  O23  1  0.745  0.323  0.127  1.0
[/CIF]
.