The material described by K2CoH4(O7I2)2 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(11), one O(18), one O(20), one O(26), one O(28), one O(5), one O(7), and one O(9) atom. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(17), one O(19), one O(25), one O(27), one O(6), and one O(8) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(14), one O(15), one O(21), one O(24), one O(5), and one O(7) atom. In the fourth K site, K(4) is bonded in a 8-coordinate geometry to one O(11), one O(13), one O(16), one O(22), one O(23), one O(6), one O(8), and one O(9) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in an octahedral geometry to one O(18), one O(19), one O(2), one O(26), one O(27), and one O(3) atom. In the second Co site, Co(2) is bonded in an octahedral geometry to one O(1), one O(17), one O(20), one O(25), one O(28), and one O(4) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(23) and one O(3) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(24) and one O(4) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(21) and one O(3) atom. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(22) and one O(4) atom. In the fifth H site, H(5) is bonded in a distorted single-bond geometry to one O(1) and one O(15) atom. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one O(16) and one O(2) atom. In the seventh H site, H(7) is bonded in a distorted single-bond geometry to one O(1) and one O(13) atom. In the eighth H site, H(8) is bonded in a distorted single-bond geometry to one O(14) and one O(2) atom. There are twenty-eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Co(2), one H(5), and one H(7) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Co(1), one H(6), and one H(8) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one H(1), and one H(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(2), one H(2), and one H(4) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one K(3), and one I(6) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(2), one K(4), and one I(5) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one K(3), and one I(8) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one K(2), one K(4), and one I(7) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one K(1), one K(4), one I(1), and one I(8) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one K(2), one K(3), one I(2), and one I(7) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one K(1), one K(4), one I(4), and one I(5) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one K(2), one K(3), one I(3), and one I(6) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one K(4), one H(7), and one I(1) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one K(3), one H(8), and one I(2) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one K(3), one H(5), and one I(4) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one K(4), one H(6), and one I(3) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal non-coplanar geometry to one K(2), one Co(2), and one I(1) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Co(1), and one I(2) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal non-coplanar geometry to one K(2), one Co(1), and one I(3) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Co(2), and one I(4) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one K(3), one H(3), and one I(6) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one K(4), one H(4), and one I(5) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one K(4), one H(1), and one I(8) atom. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one K(3), one H(2), and one I(7) atom. In the twenty-fifth O site, O(25) is bonded in a distorted bent 120 degrees geometry to one K(2), one Co(2), and one I(5) atom. In the twenty-sixth O site, O(26) is bonded in a bent 120 degrees geometry to one K(1), one Co(1), and one I(6) atom. In the twenty-seventh O site, O(27) is bonded in a bent 120 degrees geometry to one K(2), one Co(1), and one I(7) atom. In the twenty-eighth O site, O(28) is bonded in a bent 120 degrees geometry to one K(1), one Co(2), and one I(8) atom. There are eight inequivalent I sites. In the first I site, I(1) is bonded in a distorted trigonal non-coplanar geometry to one O(13), one O(17), and one O(9) atom. In the second I site, I(2) is bonded in a distorted trigonal non-coplanar geometry to one O(10), one O(14), and one O(18) atom. In the third I site, I(3) is bonded in a distorted trigonal non-coplanar geometry to one O(12), one O(16), and one O(19) atom. In the fourth I site, I(4) is bonded in a distorted trigonal non-coplanar geometry to one O(11), one O(15), and one O(20) atom. In the fifth I site, I(5) is bonded in a 3-coordinate geometry to one O(11), one O(22), one O(25), and one O(6) atom. In the sixth I site, I(6) is bonded in a 3-coordinate geometry to one O(12), one O(21), one O(26), and one O(5) atom. In the seventh I site, I(7) is bonded in a 3-coordinate geometry to one O(10), one O(24), one O(27), and one O(8) atom. In the eighth I site, I(8) is bonded in a 3-coordinate geometry to one O(23), one O(28), one O(7), and one O(9) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2CoH4(I2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.986
_cell_length_b   8.003
_cell_length_c   8.098
_cell_angle_alpha   91.417
_cell_angle_beta   119.464
_cell_angle_gamma   60.246
_symmetry_Int_Tables_number   1
_cell_volume   374.376
_cell_formula_units_Z   1
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
  Co  Co0  1  0.918  0.497  0.496  1.0
  H  H1  1  0.671  0.374  0.528  1.0
  H  H2  1  0.520  0.624  0.473  1.0
  H  H3  1  0.171  0.530  0.376  1.0
  H  H4  1  0.326  0.465  0.627  1.0
  I  I5  1  0.342  0.493  0.980  1.0
  I  I6  1  0.855  0.510  0.020  1.0
  I  I7  1  0.333  0.037  0.518  1.0
  I  I8  1  0.849  0.963  0.480  1.0
  K  K9  1  0.345  0.002  0.999  1.0
  K  K10  1  0.869  0.002  1.000  1.0
  O  O11  1  0.184  0.492  0.501  1.0
  O  O12  1  0.665  0.499  0.501  1.0
  O  O13  1  0.546  0.904  0.784  1.0
  O  O14  1  0.663  0.098  0.215  1.0
  O  O15  1  0.163  0.768  0.872  1.0
  O  O16  1  0.056  0.236  0.128  1.0
  O  O17  1  0.511  0.419  0.867  1.0
  O  O18  1  0.062  0.585  0.133  1.0
  O  O19  1  0.141  0.422  0.824  1.0
  O  O20  1  0.738  0.584  0.177  1.0
  O  O21  1  0.283  0.846  0.421  1.0
  O  O22  1  0.708  0.152  0.579  1.0
  O  O23  1  0.074  0.185  0.531  1.0
  O  O24  1  0.729  0.813  0.470  1.0
[/CIF]
.
The material described by K2CoH4(O7I2)2 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(11), one O(18), one O(20), one O(26), one O(28), one O(5), one O(7), and one O(9) atom. In the second K site, K(2) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(17), one O(19), one O(25), one O(27), one O(6), and one O(8) atom. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(14), one O(15), one O(21), one O(24), one O(5), and one O(7) atom. In the fourth K site, K(4) is bonded in a 8-coordinate geometry to one O(11), one O(13), one O(16), one O(22), one O(23), one O(6), one O(8), and one O(9) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in an octahedral geometry to one O(18), one O(19), one O(2), one O(26), one O(27), and one O(3) atom. In the second Co site, Co(2) is bonded in an octahedral geometry to one O(1), one O(17), one O(20), one O(25), one O(28), and one O(4) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(23) and one O(3) atom. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(24) and one O(4) atom. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(21) and one O(3) atom. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(22) and one O(4) atom. In the fifth H site, H(5) is bonded in a distorted single-bond geometry to one O(1) and one O(15) atom. In the sixth H site, H(6) is bonded in a distorted single-bond geometry to one O(16) and one O(2) atom. In the seventh H site, H(7) is bonded in a distorted single-bond geometry to one O(1) and one O(13) atom. In the eighth H site, H(8) is bonded in a distorted single-bond geometry to one O(14) and one O(2) atom. There are twenty-eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Co(2), one H(5), and one H(7) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Co(1), one H(6), and one H(8) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one H(1), and one H(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(2), one H(2), and one H(4) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one K(3), and one I(6) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one K(2), one K(4), and one I(5) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one K(3), and one I(8) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one K(2), one K(4), and one I(7) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one K(1), one K(4), one I(1), and one I(8) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one K(2), one K(3), one I(2), and one I(7) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one K(1), one K(4), one I(4), and one I(5) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one K(2), one K(3), one I(3), and one I(6) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one K(4), one H(7), and one I(1) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one K(3), one H(8), and one I(2) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one K(3), one H(5), and one I(4) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one K(4), one H(6), and one I(3) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal non-coplanar geometry to one K(2), one Co(2), and one I(1) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Co(1), and one I(2) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal non-coplanar geometry to one K(2), one Co(1), and one I(3) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one Co(2), and one I(4) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one K(3), one H(3), and one I(6) atom. In the twenty-second O site, O(22) is bonded in a 3-coordinate geometry to one K(4), one H(4), and one I(5) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one K(4), one H(1), and one I(8) atom. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one K(3), one H(2), and one I(7) atom. In the twenty-fifth O site, O(25) is bonded in a distorted bent 120 degrees geometry to one K(2), one Co(2), and one I(5) atom. In the twenty-sixth O site, O(26) is bonded in a bent 120 degrees geometry to one K(1), one Co(1), and one I(6) atom. In the twenty-seventh O site, O(27) is bonded in a bent 120 degrees geometry to one K(2), one Co(1), and one I(7) atom. In the twenty-eighth O site, O(28) is bonded in a bent 120 degrees geometry to one K(1), one Co(2), and one I(8) atom. There are eight inequivalent I sites. In the first I site, I(1) is bonded in a distorted trigonal non-coplanar geometry to one O(13), one O(17), and one O(9) atom. In the second I site, I(2) is bonded in a distorted trigonal non-coplanar geometry to one O(10), one O(14), and one O(18) atom. In the third I site, I(3) is bonded in a distorted trigonal non-coplanar geometry to one O(12), one O(16), and one O(19) atom. In the fourth I site, I(4) is bonded in a distorted trigonal non-coplanar geometry to one O(11), one O(15), and one O(20) atom. In the fifth I site, I(5) is bonded in a 3-coordinate geometry to one O(11), one O(22), one O(25), and one O(6) atom. In the sixth I site, I(6) is bonded in a 3-coordinate geometry to one O(12), one O(21), one O(26), and one O(5) atom. In the seventh I site, I(7) is bonded in a 3-coordinate geometry to one O(10), one O(24), one O(27), and one O(8) atom. In the eighth I site, I(8) is bonded in a 3-coordinate geometry to one O(23), one O(28), one O(7), and one O(9) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2CoH4(I2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.986
_cell_length_b   8.003
_cell_length_c   8.098
_cell_angle_alpha   91.417
_cell_angle_beta   119.464
_cell_angle_gamma   60.246
_symmetry_Int_Tables_number   1
_cell_volume   374.376
_cell_formula_units_Z   1
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
  Co  Co0  1  0.918  0.497  0.496  1.0
  H  H1  1  0.671  0.374  0.528  1.0
  H  H2  1  0.520  0.624  0.473  1.0
  H  H3  1  0.171  0.530  0.376  1.0
  H  H4  1  0.326  0.465  0.627  1.0
  I  I5  1  0.342  0.493  0.980  1.0
  I  I6  1  0.855  0.510  0.020  1.0
  I  I7  1  0.333  0.037  0.518  1.0
  I  I8  1  0.849  0.963  0.480  1.0
  K  K9  1  0.345  0.002  0.999  1.0
  K  K10  1  0.869  0.002  1.000  1.0
  O  O11  1  0.184  0.492  0.501  1.0
  O  O12  1  0.665  0.499  0.501  1.0
  O  O13  1  0.546  0.904  0.784  1.0
  O  O14  1  0.663  0.098  0.215  1.0
  O  O15  1  0.163  0.768  0.872  1.0
  O  O16  1  0.056  0.236  0.128  1.0
  O  O17  1  0.511  0.419  0.867  1.0
  O  O18  1  0.062  0.585  0.133  1.0
  O  O19  1  0.141  0.422  0.824  1.0
  O  O20  1  0.738  0.584  0.177  1.0
  O  O21  1  0.283  0.846  0.421  1.0
  O  O22  1  0.708  0.152  0.579  1.0
  O  O23  1  0.074  0.185  0.531  1.0
  O  O24  1  0.729  0.813  0.470  1.0
[/CIF]
.