data_KCdPb2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.98
_cell_length_b   4.98
_cell_length_c   5.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KCdPb2
_chemical_formula_sum   'K1 Cd1 Pb2'
_cell_volume   125.77
_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  0.0  0.0  0.0  1.0
  Cd  Cd0  1  0.49  0.49  0.0  1.0
  Pb  Pb2  1  0.0  0.49  0.53  1.0
  Pb  Pb3  1  0.49  0.0  0.53  1.0

data_KCdPb2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.05
_cell_length_b   7.05
_cell_length_c   5.06
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   KCdPb2
_chemical_formula_sum   'K2 Cd2 Pb4'
_cell_volume   251.54
_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  0.49  0.0  0.0  1.0
  Pb  Pb2  4  0.25  0.25  0.53  1.0

K Cd Pb Pb
KCdPb2 crystallizes in the monoclinic Cm space group. K(1) is bonded to four equivalent Cd(1) and eight equivalent Pb(1) atoms to form a mixture of corner and face-sharing KCd4Pb8 cuboctahedra. There are a spread of K(1)-Cd(1) bond distances ranging from 3.47-3.58 Å. There are a spread of K(1)-Pb(1) bond distances ranging from 3.41-3.70 Å. Cd(1) is bonded in a 8-coordinate geometry to four equivalent K(1) and four equivalent Pb(1) atoms. There are two shorter (3.41 Å) and two longer (3.47 Å) Cd(1)-Pb(1) bond lengths. Pb(1) is bonded in a 6-coordinate geometry to four equivalent K(1) and two equivalent Cd(1) atoms.