data_K2IrRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.79
_cell_length_b   2.79
_cell_length_c   10.74
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2IrRh
_chemical_formula_sum   'K2 Ir1 Rh1'
_cell_volume   83.32
_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  K1  1  0.39  0.39  0.06  1.0
  K  K2  1  0.39  0.39  0.68  1.0
  Ir  Ir0  1  0.0  0.0  0.37  1.0
  Rh  Rh3  1  0.0  0.0  0.0  1.0

data_K2IrRh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.94
_cell_length_b   3.94
_cell_length_c   10.74
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   K2IrRh
_chemical_formula_sum   'K4 Ir2 Rh2'
_cell_volume   166.64
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.39  0.0  0.06  1.0
  K  K1  2  0.39  0.0  0.68  1.0
  Ir  Ir2  2  0.0  0.0  0.37  1.0
  Rh  Rh3  2  0.0  0.0  0.0  1.0

K K Ir Rh
K K Ir Rh 0 3 o o o 1 1 + o o 1 1 o + o 2 2 + o o 2 2 o + o 
K2IrRh crystallizes in the monoclinic Cm space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to four equivalent Ir(1) and four equivalent Rh(1) atoms. There are a spread of K(1)-Ir(1) bond distances ranging from 3.68-4.10 Å. There are a spread of K(1)-Rh(1) bond distances ranging from 1.67-2.47 Å. In the second K site, K(2) is bonded in a 10-coordinate geometry to four equivalent K(2), four equivalent Ir(1), and three equivalent Rh(1) atoms. All K(2)-K(2) bond lengths are 2.79 Å. There are a spread of K(2)-Ir(1) bond distances ranging from 3.68-4.10 Å. There is one shorter (3.77 Å) and two longer (3.99 Å) K(2)-Rh(1) bond lengths. Ir(1) is bonded in a 12-coordinate geometry to four equivalent K(1), four equivalent K(2), and four equivalent Ir(1) atoms. All Ir(1)-Ir(1) bond lengths are 2.79 Å. Rh(1) is bonded in a 4-coordinate geometry to three equivalent K(2) and four equivalent K(1) atoms.