The material structure described by K3Ir crystallizes in the hexagonal P6_3/mmc space group. K(1) is bonded in a 4-coordinate geometry to four equivalent Ir(1) atoms. Ir(1) is bonded to twelve equivalent K(1) atoms to form a mixture of distorted face and corner-sharing IrK12 cuboctahedra. is represented by the CIF card [CIF]
data_K3Ir
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.602
_cell_length_b   7.602
_cell_length_c   5.542
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   277.377
_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  0.187  0.374  0.250  1.0
  K  K1  1  0.626  0.813  0.250  1.0
  K  K2  1  0.187  0.813  0.250  1.0
  K  K3  1  0.813  0.626  0.750  1.0
  K  K4  1  0.374  0.187  0.750  1.0
  K  K5  1  0.813  0.187  0.750  1.0
  Ir  Ir6  1  0.333  0.667  0.750  1.0
  Ir  Ir7  1  0.667  0.333  0.250  1.0
[/CIF]
.
The material structure described by K3Ir crystallizes in the hexagonal P6_3/mmc space group. K(1) is bonded in a 4-coordinate geometry to four equivalent Ir(1) atoms. Ir(1) is bonded to twelve equivalent K(1) atoms to form a mixture of distorted face and corner-sharing IrK12 cuboctahedra. is represented by the CIF card [CIF]
data_K3Ir
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.602
_cell_length_b   7.602
_cell_length_c   5.542
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   277.377
_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  0.187  0.374  0.250  1.0
  K  K1  1  0.626  0.813  0.250  1.0
  K  K2  1  0.187  0.813  0.250  1.0
  K  K3  1  0.813  0.626  0.750  1.0
  K  K4  1  0.374  0.187  0.750  1.0
  K  K5  1  0.813  0.187  0.750  1.0
  Ir  Ir6  1  0.333  0.667  0.750  1.0
  Ir  Ir7  1  0.667  0.333  0.250  1.0
[/CIF]
.