The material structure described by KNaICl crystallizes in the tetragonal P4/mmm space group. K(1) is bonded to two equivalent I(1) and four equivalent Cl(1) atoms to form KI2Cl4 octahedra that share corners with six equivalent K(1)I2Cl4 octahedra, edges with four equivalent K(1)I2Cl4 octahedra, and edges with eight equivalent Na(1)I4Cl2 octahedra. The corner-sharing octahedra are not tilted. Na(1) is bonded to four equivalent I(1) and two equivalent Cl(1) atoms to form NaI4Cl2 octahedra that share corners with six equivalent Na(1)I4Cl2 octahedra, edges with four equivalent Na(1)I4Cl2 octahedra, and edges with eight equivalent K(1)I2Cl4 octahedra. The corner-sharing octahedra are not tilted. I(1) is bonded to two equivalent K(1) and four equivalent Na(1) atoms to form IK2Na4 octahedra that share corners with six equivalent I(1)K2Na4 octahedra, edges with four equivalent I(1)K2Na4 octahedra, and edges with eight equivalent Cl(1)K4Na2 octahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded to four equivalent K(1) and two equivalent Na(1) atoms to form distorted ClK4Na2 octahedra that share corners with six equivalent Cl(1)K4Na2 octahedra, edges with four equivalent Cl(1)K4Na2 octahedra, and edges with eight equivalent I(1)K2Na4 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_KNaICl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.510
_cell_length_b   4.510
_cell_length_c   6.819
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   138.725
_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
  K  K0  1  0.500  0.500  0.500  1.0
  Na  Na1  1  0.000  0.000  0.000  1.0
  I  I2  1  0.500  0.500  0.000  1.0
  Cl  Cl3  1  0.000  0.000  0.500  1.0
[/CIF]
.
The material structure described by KNaICl crystallizes in the tetragonal P4/mmm space group. K(1) is bonded to two equivalent I(1) and four equivalent Cl(1) atoms to form KI2Cl4 octahedra that share corners with six equivalent K(1)I2Cl4 octahedra, edges with four equivalent K(1)I2Cl4 octahedra, and edges with eight equivalent Na(1)I4Cl2 octahedra. The corner-sharing octahedra are not tilted. Na(1) is bonded to four equivalent I(1) and two equivalent Cl(1) atoms to form NaI4Cl2 octahedra that share corners with six equivalent Na(1)I4Cl2 octahedra, edges with four equivalent Na(1)I4Cl2 octahedra, and edges with eight equivalent K(1)I2Cl4 octahedra. The corner-sharing octahedra are not tilted. I(1) is bonded to two equivalent K(1) and four equivalent Na(1) atoms to form IK2Na4 octahedra that share corners with six equivalent I(1)K2Na4 octahedra, edges with four equivalent I(1)K2Na4 octahedra, and edges with eight equivalent Cl(1)K4Na2 octahedra. The corner-sharing octahedra are not tilted. Cl(1) is bonded to four equivalent K(1) and two equivalent Na(1) atoms to form distorted ClK4Na2 octahedra that share corners with six equivalent Cl(1)K4Na2 octahedra, edges with four equivalent Cl(1)K4Na2 octahedra, and edges with eight equivalent I(1)K2Na4 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF card [CIF]
data_KNaICl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.510
_cell_length_b   4.510
_cell_length_c   6.819
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   138.725
_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
  K  K0  1  0.500  0.500  0.500  1.0
  Na  Na1  1  0.000  0.000  0.000  1.0
  I  I2  1  0.500  0.500  0.000  1.0
  Cl  Cl3  1  0.000  0.000  0.500  1.0
[/CIF]
.