data_Zr4CdCu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.72
_cell_length_b   5.72
_cell_length_c   5.72
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Zr4CdCu
_chemical_formula_sum   'Zr4 Cd1 Cu1'
_cell_volume   132.51
_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
  Zr  Zr2  1  0.06  0.06  0.03  1.0
  Zr  Zr3  1  0.06  0.03  0.06  1.0
  Zr  Zr4  1  0.03  0.06  0.06  1.0
  Zr  Zr5  1  0.03  0.03  0.03  1.0
  Cd  Cd0  1  0.07  0.07  0.07  1.0
  Cu  Cu1  1  0.0  0.0  0.0  1.0

data_Zr4CdCu
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.72
_cell_length_b   5.72
_cell_length_c   14.02
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Zr4CdCu
_chemical_formula_sum   'Zr12 Cd3 Cu3'
_cell_volume   397.53
_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
  Zr  Zr0  9  0.02  0.01  0.95  1.0
  Zr  Zr1  3  0.0  0.0  0.97  1.0
  Cd  Cd2  3  0.0  0.0  0.93  1.0
  Cu  Cu3  3  0.0  0.0  0.0  1.0

Zr Zr Zr Zr Cd Cu
Zr Zr Zr Zr Cd Cu 0 1 o o o 0 2 o o o 0 3 o o o 0 4 o o o 1 2 o o o 1 3 o o o 1 4 o o o 2 3 o o o 2 4 o o o 3 5 o o o 
Zr4CuCd is Copper structured and crystallizes in the trigonal R3m space group. The structure is zero-dimensional and consists of three Zr4CuCd clusters. There are two inequivalent Zr sites. In the first Zr site, Zr(1) is bonded in a 3-coordinate geometry to one Zr(2), two equivalent Zr(1), and one Cd(1) atom. The Zr(1)-Zr(2) bond length is 0.24 Å. Both Zr(1)-Zr(1) bond lengths are 0.14 Å. The Zr(1)-Cd(1) bond length is 0.28 Å. In the second Zr site, Zr(2) is bonded in a single-bond geometry to three equivalent Zr(1) and one Cu(1) atom. The Zr(2)-Cu(1) bond length is 0.48 Å. Cu(1) is bonded in a single-bond geometry to one Zr(2) atom. Cd(1) is bonded in a 3-coordinate geometry to three equivalent Zr(1) atoms.