data_KAlZnCd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.15
_cell_length_b   5.15
_cell_length_c   5.15
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KAlZnCd
_chemical_formula_sum   'K1 Al1 Zn1 Cd1'
_cell_volume   96.49
_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  K2  1  0.64  0.64  0.64  1.0
  Al  Al0  1  0.0  0.0  0.0  1.0
  Zn  Zn3  1  0.82  0.82  0.82  1.0
  Cd  Cd1  1  0.46  0.46  0.46  1.0

data_KAlZnCd
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.15
_cell_length_b   5.15
_cell_length_c   12.61
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   KAlZnCd
_chemical_formula_sum   'K3 Al3 Zn3 Cd3'
_cell_volume   289.47
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.36  1.0
  Al  Al1  3  0.0  0.0  0.0  1.0
  Zn  Zn2  3  0.0  0.0  0.18  1.0
  Cd  Cd3  3  0.0  0.0  0.54  1.0

K Al Zn Cd
K Al Zn Cd 0 3 o o o 0 2 o o o 1 2 - - - 
KCdZnAl crystallizes in the trigonal R3m space group. K(1) is bonded in a distorted linear geometry to one Cd(1), one Zn(1), and three equivalent Al(1) atoms. The K(1)-Cd(1) bond length is 2.27 Å. The K(1)-Zn(1) bond length is 2.27 Å. All K(1)-Al(1) bond lengths are 2.99 Å. Cd(1) is bonded in a single-bond geometry to one K(1) atom. Zn(1) is bonded in a distorted single-bond geometry to one K(1) and one Al(1) atom. The Zn(1)-Al(1) bond length is 2.27 Å. Al(1) is bonded to three equivalent K(1) and one Zn(1) atom to form corner-sharing AlK3Zn trigonal pyramids.