The crystal structure described by K4Cu(O10I)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(7), one O(8), and two equivalent O(9) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one O(3), one O(4), one O(7), and two equivalent O(6) atoms. Cu(1) is bonded in a square co-planar geometry to two equivalent O(4) and two equivalent O(5) atoms. There are ten inequivalent O sites. In the first O site, O(6) is bonded in a 3-coordinate geometry to two equivalent K(2) and one I(1) atom. In the second O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(2), and one I(1) atom. In the third O site, O(8) is bonded in a bent 150 degrees geometry to one K(1) and one O(8) atom. In the fourth O site, O(1) is bonded in a distorted water-like geometry to one O(1) and one O(9) atom. In the fifth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one O(1) atom. In the sixth O site, O(2) is bonded in a bent 120 degrees geometry to one K(1) and one O(10) atom. In the seventh O site, O(10) is bonded in a bent 150 degrees geometry to one K(1) and one O(2) atom. In the eighth O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one I(1) atom. In the ninth O site, O(4) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Cu(1), and one I(1) atom. In the tenth O site, O(5) is bonded in a water-like geometry to one Cu(1) and one I(1) atom. I(1) is bonded in a distorted trigonal bipyramidal geometry to one O(3), one O(4), one O(5), one O(6), and one O(7) atom. is represented by the CIF file [CIF]
data_K4Cu(IO10)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.779
_cell_length_b   9.138
_cell_length_c   12.998
_cell_angle_alpha   55.528
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1055.492
_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  0.183  0.420  0.798  1.0
  K  K1  1  0.317  0.420  0.298  1.0
  K  K2  1  0.817  0.580  0.202  1.0
  K  K3  1  0.683  0.580  0.702  1.0
  K  K4  1  0.425  0.987  0.188  1.0
  K  K5  1  0.075  0.987  0.688  1.0
  K  K6  1  0.575  0.013  0.812  1.0
  K  K7  1  0.925  0.013  0.312  1.0
  Cu  Cu8  1  0.500  0.000  0.500  1.0
  Cu  Cu9  1  0.000  0.000  0.000  1.0
  I  I10  1  0.241  0.924  0.478  1.0
  I  I11  1  0.259  0.924  0.978  1.0
  I  I12  1  0.759  0.076  0.522  1.0
  I  I13  1  0.741  0.076  0.022  1.0
  O  O14  1  0.463  0.449  0.959  1.0
  O  O15  1  0.037  0.449  0.459  1.0
  O  O16  1  0.537  0.551  0.041  1.0
  O  O17  1  0.963  0.551  0.541  1.0
  O  O18  1  0.296  0.486  0.584  1.0
  O  O19  1  0.204  0.486  0.084  1.0
  O  O20  1  0.704  0.514  0.416  1.0
  O  O21  1  0.796  0.514  0.916  1.0
  O  O22  1  0.145  0.758  0.607  1.0
  O  O23  1  0.355  0.758  0.107  1.0
  O  O24  1  0.855  0.242  0.393  1.0
  O  O25  1  0.645  0.242  0.893  1.0
  O  O26  1  0.393  0.044  0.375  1.0
  O  O27  1  0.107  0.044  0.875  1.0
  O  O28  1  0.607  0.956  0.625  1.0
  O  O29  1  0.893  0.956  0.125  1.0
  O  O30  1  0.129  0.861  0.100  1.0
  O  O31  1  0.371  0.861  0.600  1.0
  O  O32  1  0.871  0.139  0.900  1.0
  O  O33  1  0.629  0.139  0.400  1.0
  O  O34  1  0.191  0.891  0.359  1.0
  O  O35  1  0.309  0.891  0.859  1.0
  O  O36  1  0.809  0.109  0.641  1.0
  O  O37  1  0.691  0.109  0.141  1.0
  O  O38  1  0.330  0.125  0.946  1.0
  O  O39  1  0.170  0.125  0.446  1.0
  O  O40  1  0.670  0.875  0.054  1.0
  O  O41  1  0.830  0.875  0.554  1.0
  O  O42  1  0.004  0.458  0.975  1.0
  O  O43  1  0.496  0.458  0.475  1.0
  O  O44  1  0.996  0.542  0.025  1.0
  O  O45  1  0.504  0.542  0.525  1.0
  O  O46  1  0.439  0.567  0.847  1.0
  O  O47  1  0.061  0.567  0.347  1.0
  O  O48  1  0.561  0.433  0.153  1.0
  O  O49  1  0.939  0.433  0.653  1.0
  O  O50  1  0.218  0.401  0.036  1.0
  O  O51  1  0.282  0.401  0.536  1.0
  O  O52  1  0.782  0.599  0.964  1.0
  O  O53  1  0.718  0.599  0.464  1.0
[/CIF]
.
The crystal structure described by K4Cu(O10I)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(7), one O(8), and two equivalent O(9) atoms. In the second K site, K(2) is bonded in a 5-coordinate geometry to one O(3), one O(4), one O(7), and two equivalent O(6) atoms. Cu(1) is bonded in a square co-planar geometry to two equivalent O(4) and two equivalent O(5) atoms. There are ten inequivalent O sites. In the first O site, O(6) is bonded in a 3-coordinate geometry to two equivalent K(2) and one I(1) atom. In the second O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(2), and one I(1) atom. In the third O site, O(8) is bonded in a bent 150 degrees geometry to one K(1) and one O(8) atom. In the fourth O site, O(1) is bonded in a distorted water-like geometry to one O(1) and one O(9) atom. In the fifth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one O(1) atom. In the sixth O site, O(2) is bonded in a bent 120 degrees geometry to one K(1) and one O(10) atom. In the seventh O site, O(10) is bonded in a bent 150 degrees geometry to one K(1) and one O(2) atom. In the eighth O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one K(2), and one I(1) atom. In the ninth O site, O(4) is bonded in a 4-coordinate geometry to one K(1), one K(2), one Cu(1), and one I(1) atom. In the tenth O site, O(5) is bonded in a water-like geometry to one Cu(1) and one I(1) atom. I(1) is bonded in a distorted trigonal bipyramidal geometry to one O(3), one O(4), one O(5), one O(6), and one O(7) atom. is represented by the CIF file [CIF]
data_K4Cu(IO10)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.779
_cell_length_b   9.138
_cell_length_c   12.998
_cell_angle_alpha   55.528
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1055.492
_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  0.183  0.420  0.798  1.0
  K  K1  1  0.317  0.420  0.298  1.0
  K  K2  1  0.817  0.580  0.202  1.0
  K  K3  1  0.683  0.580  0.702  1.0
  K  K4  1  0.425  0.987  0.188  1.0
  K  K5  1  0.075  0.987  0.688  1.0
  K  K6  1  0.575  0.013  0.812  1.0
  K  K7  1  0.925  0.013  0.312  1.0
  Cu  Cu8  1  0.500  0.000  0.500  1.0
  Cu  Cu9  1  0.000  0.000  0.000  1.0
  I  I10  1  0.241  0.924  0.478  1.0
  I  I11  1  0.259  0.924  0.978  1.0
  I  I12  1  0.759  0.076  0.522  1.0
  I  I13  1  0.741  0.076  0.022  1.0
  O  O14  1  0.463  0.449  0.959  1.0
  O  O15  1  0.037  0.449  0.459  1.0
  O  O16  1  0.537  0.551  0.041  1.0
  O  O17  1  0.963  0.551  0.541  1.0
  O  O18  1  0.296  0.486  0.584  1.0
  O  O19  1  0.204  0.486  0.084  1.0
  O  O20  1  0.704  0.514  0.416  1.0
  O  O21  1  0.796  0.514  0.916  1.0
  O  O22  1  0.145  0.758  0.607  1.0
  O  O23  1  0.355  0.758  0.107  1.0
  O  O24  1  0.855  0.242  0.393  1.0
  O  O25  1  0.645  0.242  0.893  1.0
  O  O26  1  0.393  0.044  0.375  1.0
  O  O27  1  0.107  0.044  0.875  1.0
  O  O28  1  0.607  0.956  0.625  1.0
  O  O29  1  0.893  0.956  0.125  1.0
  O  O30  1  0.129  0.861  0.100  1.0
  O  O31  1  0.371  0.861  0.600  1.0
  O  O32  1  0.871  0.139  0.900  1.0
  O  O33  1  0.629  0.139  0.400  1.0
  O  O34  1  0.191  0.891  0.359  1.0
  O  O35  1  0.309  0.891  0.859  1.0
  O  O36  1  0.809  0.109  0.641  1.0
  O  O37  1  0.691  0.109  0.141  1.0
  O  O38  1  0.330  0.125  0.946  1.0
  O  O39  1  0.170  0.125  0.446  1.0
  O  O40  1  0.670  0.875  0.054  1.0
  O  O41  1  0.830  0.875  0.554  1.0
  O  O42  1  0.004  0.458  0.975  1.0
  O  O43  1  0.496  0.458  0.475  1.0
  O  O44  1  0.996  0.542  0.025  1.0
  O  O45  1  0.504  0.542  0.525  1.0
  O  O46  1  0.439  0.567  0.847  1.0
  O  O47  1  0.061  0.567  0.347  1.0
  O  O48  1  0.561  0.433  0.153  1.0
  O  O49  1  0.939  0.433  0.653  1.0
  O  O50  1  0.218  0.401  0.036  1.0
  O  O51  1  0.282  0.401  0.536  1.0
  O  O52  1  0.782  0.599  0.964  1.0
  O  O53  1  0.718  0.599  0.464  1.0
[/CIF]
.