The 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 6-coordinate geometry to one H(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one H(4), two equivalent H(2), two equivalent H(3), one O(2), and two equivalent O(1) atoms. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one K(1) and one O(4) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to two equivalent K(2) and one H(2) atom. In the third H site, H(3) is bonded in a 2-coordinate geometry to two equivalent K(2) atoms. In the fourth H site, H(4) is bonded in a single-bond geometry to 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 two equivalent K(2), one H(4), and one I(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one I(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent K(1) and one I(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one K(1), one H(1), and one I(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1) and one I(1) atom. I(1) is bonded in a square pyramidal geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. is represented by the CIF card [CIF]
data_K2H4IO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.491
_cell_length_b   7.622
_cell_length_c   10.322
_cell_angle_alpha   107.284
_cell_angle_beta   85.011
_cell_angle_gamma   111.481
_symmetry_Int_Tables_number   1
_cell_volume   383.688
_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  0.171  0.399  0.636  1.0
  K  K1  1  0.829  0.601  0.364  1.0
  K  K2  1  0.797  0.747  0.938  1.0
  K  K3  1  0.203  0.253  0.062  1.0
  H  H4  1  0.166  0.975  0.432  1.0
  H  H5  1  0.834  0.025  0.568  1.0
  H  H6  1  0.050  0.547  0.022  1.0
  H  H7  1  0.950  0.453  0.978  1.0
  H  H8  1  0.337  0.796  0.989  1.0
  H  H9  1  0.663  0.204  0.011  1.0
  H  H10  1  0.046  0.043  0.251  1.0
  H  H11  1  0.954  0.957  0.749  1.0
  I  I12  1  0.591  0.057  0.317  1.0
  I  I13  1  0.409  0.943  0.683  1.0
  O  O14  1  0.109  0.014  0.809  1.0
  O  O15  1  0.891  0.986  0.191  1.0
  O  O16  1  0.513  0.171  0.199  1.0
  O  O17  1  0.487  0.829  0.801  1.0
  O  O18  1  0.157  0.708  0.575  1.0
  O  O19  1  0.843  0.292  0.425  1.0
  O  O20  1  0.296  0.109  0.454  1.0
  O  O21  1  0.704  0.891  0.546  1.0
  O  O22  1  0.645  0.206  0.752  1.0
  O  O23  1  0.355  0.794  0.248  1.0
[/CIF]
.
The 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 6-coordinate geometry to one H(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms. In the second K site, K(2) is bonded in a 8-coordinate geometry to one H(4), two equivalent H(2), two equivalent H(3), one O(2), and two equivalent O(1) atoms. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one K(1) and one O(4) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to two equivalent K(2) and one H(2) atom. In the third H site, H(3) is bonded in a 2-coordinate geometry to two equivalent K(2) atoms. In the fourth H site, H(4) is bonded in a single-bond geometry to 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 two equivalent K(2), one H(4), and one I(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one I(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to two equivalent K(1) and one I(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one K(1), one H(1), and one I(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one K(1) and one I(1) atom. I(1) is bonded in a square pyramidal geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. is represented by the CIF card [CIF]
data_K2H4IO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.491
_cell_length_b   7.622
_cell_length_c   10.322
_cell_angle_alpha   107.284
_cell_angle_beta   85.011
_cell_angle_gamma   111.481
_symmetry_Int_Tables_number   1
_cell_volume   383.688
_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  0.171  0.399  0.636  1.0
  K  K1  1  0.829  0.601  0.364  1.0
  K  K2  1  0.797  0.747  0.938  1.0
  K  K3  1  0.203  0.253  0.062  1.0
  H  H4  1  0.166  0.975  0.432  1.0
  H  H5  1  0.834  0.025  0.568  1.0
  H  H6  1  0.050  0.547  0.022  1.0
  H  H7  1  0.950  0.453  0.978  1.0
  H  H8  1  0.337  0.796  0.989  1.0
  H  H9  1  0.663  0.204  0.011  1.0
  H  H10  1  0.046  0.043  0.251  1.0
  H  H11  1  0.954  0.957  0.749  1.0
  I  I12  1  0.591  0.057  0.317  1.0
  I  I13  1  0.409  0.943  0.683  1.0
  O  O14  1  0.109  0.014  0.809  1.0
  O  O15  1  0.891  0.986  0.191  1.0
  O  O16  1  0.513  0.171  0.199  1.0
  O  O17  1  0.487  0.829  0.801  1.0
  O  O18  1  0.157  0.708  0.575  1.0
  O  O19  1  0.843  0.292  0.425  1.0
  O  O20  1  0.296  0.109  0.454  1.0
  O  O21  1  0.704  0.891  0.546  1.0
  O  O22  1  0.645  0.206  0.752  1.0
  O  O23  1  0.355  0.794  0.248  1.0
[/CIF]
.