The material described by K2PtI6 crystallizes in the tetragonal P4/mnc space group. K(1) is bonded in a body-centered cubic geometry to four equivalent I(1) and four equivalent I(2) atoms. Pt(1) is bonded in an octahedral geometry to two equivalent I(2) and four equivalent I(1) atoms. There are two inequivalent I sites. In the first I site, I(2) is bonded to four equivalent K(1) and one Pt(1) atom to form a mixture of edge and corner-sharing IK4Pt square pyramids. In the second I site, I(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one Pt(1) atom. is represented by the CIF card [CIF]
data_K2PtI6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.645
_cell_length_b   7.645
_cell_length_c   11.978
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   699.954
_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  0.500  0.000  0.750  1.0
  K  K1  1  0.000  0.500  0.750  1.0
  K  K2  1  0.500  0.000  0.250  1.0
  K  K3  1  0.000  0.500  0.250  1.0
  Pt  Pt4  1  0.500  0.500  0.500  1.0
  Pt  Pt5  1  0.000  0.000  0.000  1.0
  I  I6  1  0.704  0.194  0.000  1.0
  I  I7  1  0.694  0.204  0.500  1.0
  I  I8  1  0.306  0.796  0.500  1.0
  I  I9  1  0.296  0.806  0.000  1.0
  I  I10  1  0.796  0.694  0.500  1.0
  I  I11  1  0.204  0.306  0.500  1.0
  I  I12  1  0.000  0.000  0.225  1.0
  I  I13  1  0.500  0.500  0.275  1.0
  I  I14  1  0.000  0.000  0.775  1.0
  I  I15  1  0.500  0.500  0.725  1.0
  I  I16  1  0.806  0.704  0.000  1.0
  I  I17  1  0.194  0.296  0.000  1.0
[/CIF]
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The material described by K2PtI6 crystallizes in the tetragonal P4/mnc space group. K(1) is bonded in a body-centered cubic geometry to four equivalent I(1) and four equivalent I(2) atoms. Pt(1) is bonded in an octahedral geometry to two equivalent I(2) and four equivalent I(1) atoms. There are two inequivalent I sites. In the first I site, I(2) is bonded to four equivalent K(1) and one Pt(1) atom to form a mixture of edge and corner-sharing IK4Pt square pyramids. In the second I site, I(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent K(1) and one Pt(1) atom. is represented by the CIF card [CIF]
data_K2PtI6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.645
_cell_length_b   7.645
_cell_length_c   11.978
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   699.954
_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  0.500  0.000  0.750  1.0
  K  K1  1  0.000  0.500  0.750  1.0
  K  K2  1  0.500  0.000  0.250  1.0
  K  K3  1  0.000  0.500  0.250  1.0
  Pt  Pt4  1  0.500  0.500  0.500  1.0
  Pt  Pt5  1  0.000  0.000  0.000  1.0
  I  I6  1  0.704  0.194  0.000  1.0
  I  I7  1  0.694  0.204  0.500  1.0
  I  I8  1  0.306  0.796  0.500  1.0
  I  I9  1  0.296  0.806  0.000  1.0
  I  I10  1  0.796  0.694  0.500  1.0
  I  I11  1  0.204  0.306  0.500  1.0
  I  I12  1  0.000  0.000  0.225  1.0
  I  I13  1  0.500  0.500  0.275  1.0
  I  I14  1  0.000  0.000  0.775  1.0
  I  I15  1  0.500  0.500  0.725  1.0
  I  I16  1  0.806  0.704  0.000  1.0
  I  I17  1  0.194  0.296  0.000  1.0
[/CIF]
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