data_K2Cd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.5
_cell_length_b   4.5
_cell_length_c   8.95
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2Cd
_chemical_formula_sum   'K2 Cd1'
_cell_volume   156.64
_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  0.25  0.3  0.38  1.0
  K  K2  1  0.0  0.6  0.58  1.0
  Cd  Cd0  1  0.0  0.0  0.0  1.0

data_K2Cd
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.5
_cell_length_b   4.5
_cell_length_c   8.95
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2Cd
_chemical_formula_sum   'K2 Cd1'
_cell_volume   156.64
_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  0.0  0.6  0.58  1.0
  K  K1  1  0.25  0.3  0.38  1.0
  Cd  Cd2  1  0.0  0.0  0.0  1.0

K K Cd
K K Cd 0 1 o o o 0 1 o - o 0 1 + o o 0 2 + + o 0 2 o o o 1 2 o o + 1 2 o + + 2 2 + + o 2 2 o + o 2 2 + o o 
CdK2 crystallizes in the triclinic P1 space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to three equivalent K(2) and one Cd(1) atom. There are a spread of K(1)-K(2) bond distances ranging from 2.79-3.46 Å. The K(1)-Cd(1) bond length is 3.58 Å. In the second K site, K(2) is bonded in a 4-coordinate geometry to three equivalent K(1) and one Cd(1) atom. The K(2)-Cd(1) bond length is 4.21 Å. Cd(1) is bonded in a distorted single-bond geometry to one K(1) and one K(2) atom.