data_KCd2Cu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.4
_cell_length_b   3.4
_cell_length_c   8.65
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KCd2Cu
_chemical_formula_sum   'K1 Cd2 Cu1'
_cell_volume   99.72
_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  K3  1  0.0  0.0  0.0  1.0
  Cd  Cd0  1  0.7  0.7  0.8  1.0
  Cd  Cd1  1  0.7  0.7  0.85  1.0
  Cu  Cu2  1  0.0  0.0  0.32  1.0

data_KCd2Cu
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.8
_cell_length_b   4.8
_cell_length_c   8.65
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KCd2Cu
_chemical_formula_sum   'K2 Cd4 Cu2'
_cell_volume   199.45
_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  0.0  0.0  0.0  1.0
  Cd  Cd1  2  0.2  0.5  0.8  1.0
  Cd  Cd2  2  0.2  0.5  0.85  1.0
  Cu  Cu3  2  0.0  0.0  0.32  1.0

K Cd Cd Cu
KCuCd2 crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two KCuCd2 clusters. K(1) is bonded in a 1-coordinate geometry to one Cu(1) and one Cd(2) atom. The K(1)-Cu(1) bond length is 2.81 Å. The K(1)-Cd(2) bond length is 1.94 Å. Cu(1) is bonded in a single-bond geometry to one K(1) atom. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded in a single-bond geometry to one Cd(2) atom. The Cd(1)-Cd(2) bond length is 0.46 Å. In the second Cd site, Cd(2) is bonded in a 2-coordinate geometry to one K(1) and one Cd(1) atom.