The crystal structure described by K2Pt(OI2)2 crystallizes in the triclinic P-1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a distorted L-shaped geometry to one Pt(1), one O(3), one O(4), one I(2), one I(3), and two equivalent I(1) atoms. In the second K site, K(2) is bonded in a distorted L-shaped geometry to one Pt(2), one O(3), one O(4), one I(1), one I(4), and two equivalent I(2) atoms. In the third K site, K(3) is bonded in a distorted L-shaped geometry to one Pt(3), one O(1), one O(2), one I(1), one I(4), and two equivalent I(3) atoms. In the fourth K site, K(4) is bonded in a distorted L-shaped geometry to one Pt(4), one O(1), one O(2), one I(2), one I(3), and two equivalent I(4) atoms. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted octahedral geometry to two equivalent K(1), two equivalent I(1), and two equivalent I(5) atoms. In the second Pt site, Pt(2) is bonded in a 6-coordinate geometry to two equivalent K(2), two equivalent I(2), and two equivalent I(6) atoms. In the third Pt site, Pt(3) is bonded in a 6-coordinate geometry to two equivalent K(3), two equivalent I(3), and two equivalent I(7) atoms. In the fourth Pt site, Pt(4) is bonded in a 6-coordinate geometry to two equivalent K(4), two equivalent I(4), and two equivalent I(8) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one K(3), one K(4), and one I(6) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one K(3), one K(4), and one I(5) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one K(1), one K(2), and one I(8) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one K(1), one K(2), and one I(7) atom. There are eight inequivalent I sites. In the first I site, I(1) is bonded in a 5-coordinate geometry to one K(2), one K(3), two equivalent K(1), and one Pt(1) atom. In the second I site, I(2) is bonded in a 5-coordinate geometry to one K(1), one K(4), two equivalent K(2), and one Pt(2) atom. In the third I site, I(3) is bonded in a 5-coordinate geometry to one K(1), one K(4), two equivalent K(3), and one Pt(3) atom. In the fourth I site, I(4) is bonded in a 5-coordinate geometry to one K(2), one K(3), two equivalent K(4), and one Pt(4) atom. In the fifth I site, I(5) is bonded in a 1-coordinate geometry to one Pt(1) and one O(2) atom. In the sixth I site, I(6) is bonded in a 2-coordinate geometry to one Pt(2) and one O(1) atom. In the seventh I site, I(7) is bonded in a 2-coordinate geometry to one Pt(3) and one O(4) atom. In the eighth I site, I(8) is bonded in a 2-coordinate geometry to one Pt(4) and one O(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Pt(I2O)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.470
_cell_length_b   11.810
_cell_length_c   14.138
_cell_angle_alpha   90.109
_cell_angle_beta   90.124
_cell_angle_gamma   90.085
_symmetry_Int_Tables_number   1
_cell_volume   1247.321
_cell_formula_units_Z   4
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  0.732  0.355  0.314  1.0
  K  K1  1  0.769  0.851  0.685  1.0
  K  K2  1  0.230  0.646  0.186  1.0
  K  K3  1  0.272  0.144  0.815  1.0
  K  K4  1  0.268  0.645  0.686  1.0
  K  K5  1  0.231  0.149  0.315  1.0
  K  K6  1  0.770  0.354  0.814  1.0
  K  K7  1  0.728  0.856  0.185  1.0
  Pt  Pt8  1  0.000  0.500  0.500  1.0
  Pt  Pt9  1  0.500  0.000  0.500  1.0
  Pt  Pt10  1  0.500  0.500  0.000  1.0
  Pt  Pt11  1  0.000  0.000  0.000  1.0
  I  I12  1  0.766  0.559  0.630  1.0
  I  I13  1  0.729  0.063  0.369  1.0
  I  I14  1  0.273  0.436  0.869  1.0
  I  I15  1  0.228  0.938  0.131  1.0
  I  I16  1  0.234  0.441  0.370  1.0
  I  I17  1  0.271  0.937  0.631  1.0
  I  I18  1  0.727  0.564  0.131  1.0
  I  I19  1  0.772  0.062  0.869  1.0
  I  I20  1  0.151  0.331  0.592  1.0
  I  I21  1  0.346  0.833  0.407  1.0
  I  I22  1  0.652  0.668  0.909  1.0
  I  I23  1  0.850  0.169  0.090  1.0
  I  I24  1  0.849  0.669  0.408  1.0
  I  I25  1  0.654  0.167  0.593  1.0
  I  I26  1  0.348  0.332  0.091  1.0
  I  I27  1  0.150  0.831  0.910  1.0
  O  O28  1  0.551  0.201  0.714  1.0
  O  O29  1  0.953  0.704  0.289  1.0
  O  O30  1  0.050  0.795  0.787  1.0
  O  O31  1  0.449  0.300  0.213  1.0
  O  O32  1  0.449  0.799  0.286  1.0
  O  O33  1  0.047  0.296  0.711  1.0
  O  O34  1  0.950  0.205  0.213  1.0
  O  O35  1  0.551  0.700  0.787  1.0
[/CIF]
.
The crystal structure described by K2Pt(OI2)2 crystallizes in the triclinic P-1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a distorted L-shaped geometry to one Pt(1), one O(3), one O(4), one I(2), one I(3), and two equivalent I(1) atoms. In the second K site, K(2) is bonded in a distorted L-shaped geometry to one Pt(2), one O(3), one O(4), one I(1), one I(4), and two equivalent I(2) atoms. In the third K site, K(3) is bonded in a distorted L-shaped geometry to one Pt(3), one O(1), one O(2), one I(1), one I(4), and two equivalent I(3) atoms. In the fourth K site, K(4) is bonded in a distorted L-shaped geometry to one Pt(4), one O(1), one O(2), one I(2), one I(3), and two equivalent I(4) atoms. There are four inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted octahedral geometry to two equivalent K(1), two equivalent I(1), and two equivalent I(5) atoms. In the second Pt site, Pt(2) is bonded in a 6-coordinate geometry to two equivalent K(2), two equivalent I(2), and two equivalent I(6) atoms. In the third Pt site, Pt(3) is bonded in a 6-coordinate geometry to two equivalent K(3), two equivalent I(3), and two equivalent I(7) atoms. In the fourth Pt site, Pt(4) is bonded in a 6-coordinate geometry to two equivalent K(4), two equivalent I(4), and two equivalent I(8) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one K(3), one K(4), and one I(6) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one K(3), one K(4), and one I(5) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one K(1), one K(2), and one I(8) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one K(1), one K(2), and one I(7) atom. There are eight inequivalent I sites. In the first I site, I(1) is bonded in a 5-coordinate geometry to one K(2), one K(3), two equivalent K(1), and one Pt(1) atom. In the second I site, I(2) is bonded in a 5-coordinate geometry to one K(1), one K(4), two equivalent K(2), and one Pt(2) atom. In the third I site, I(3) is bonded in a 5-coordinate geometry to one K(1), one K(4), two equivalent K(3), and one Pt(3) atom. In the fourth I site, I(4) is bonded in a 5-coordinate geometry to one K(2), one K(3), two equivalent K(4), and one Pt(4) atom. In the fifth I site, I(5) is bonded in a 1-coordinate geometry to one Pt(1) and one O(2) atom. In the sixth I site, I(6) is bonded in a 2-coordinate geometry to one Pt(2) and one O(1) atom. In the seventh I site, I(7) is bonded in a 2-coordinate geometry to one Pt(3) and one O(4) atom. In the eighth I site, I(8) is bonded in a 2-coordinate geometry to one Pt(4) and one O(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K2Pt(I2O)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.470
_cell_length_b   11.810
_cell_length_c   14.138
_cell_angle_alpha   90.109
_cell_angle_beta   90.124
_cell_angle_gamma   90.085
_symmetry_Int_Tables_number   1
_cell_volume   1247.321
_cell_formula_units_Z   4
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  0.732  0.355  0.314  1.0
  K  K1  1  0.769  0.851  0.685  1.0
  K  K2  1  0.230  0.646  0.186  1.0
  K  K3  1  0.272  0.144  0.815  1.0
  K  K4  1  0.268  0.645  0.686  1.0
  K  K5  1  0.231  0.149  0.315  1.0
  K  K6  1  0.770  0.354  0.814  1.0
  K  K7  1  0.728  0.856  0.185  1.0
  Pt  Pt8  1  0.000  0.500  0.500  1.0
  Pt  Pt9  1  0.500  0.000  0.500  1.0
  Pt  Pt10  1  0.500  0.500  0.000  1.0
  Pt  Pt11  1  0.000  0.000  0.000  1.0
  I  I12  1  0.766  0.559  0.630  1.0
  I  I13  1  0.729  0.063  0.369  1.0
  I  I14  1  0.273  0.436  0.869  1.0
  I  I15  1  0.228  0.938  0.131  1.0
  I  I16  1  0.234  0.441  0.370  1.0
  I  I17  1  0.271  0.937  0.631  1.0
  I  I18  1  0.727  0.564  0.131  1.0
  I  I19  1  0.772  0.062  0.869  1.0
  I  I20  1  0.151  0.331  0.592  1.0
  I  I21  1  0.346  0.833  0.407  1.0
  I  I22  1  0.652  0.668  0.909  1.0
  I  I23  1  0.850  0.169  0.090  1.0
  I  I24  1  0.849  0.669  0.408  1.0
  I  I25  1  0.654  0.167  0.593  1.0
  I  I26  1  0.348  0.332  0.091  1.0
  I  I27  1  0.150  0.831  0.910  1.0
  O  O28  1  0.551  0.201  0.714  1.0
  O  O29  1  0.953  0.704  0.289  1.0
  O  O30  1  0.050  0.795  0.787  1.0
  O  O31  1  0.449  0.300  0.213  1.0
  O  O32  1  0.449  0.799  0.286  1.0
  O  O33  1  0.047  0.296  0.711  1.0
  O  O34  1  0.950  0.205  0.213  1.0
  O  O35  1  0.551  0.700  0.787  1.0
[/CIF]
.