data_ZrZn2Cd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.7
_cell_length_b   4.7
_cell_length_c   4.7
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   ZrZn2Cd
_chemical_formula_sum   'Zr1 Zn2 Cd1'
_cell_volume   73.24
_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  Zr3  1  0.32  0.32  0.32  1.0
  Zn  Zn1  1  0.66  0.66  0.66  1.0
  Zn  Zn2  1  0.0  0.0  0.0  1.0
  Cd  Cd0  1  0.98  0.98  0.98  1.0

data_ZrZn2Cd
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.7
_cell_length_b   4.7
_cell_length_c   11.5
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   ZrZn2Cd
_chemical_formula_sum   'Zr3 Zn6 Cd3'
_cell_volume   219.73
_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  3  0.0  0.0  0.68  1.0
  Zn  Zn1  3  0.0  0.0  0.0  1.0
  Zn  Zn2  3  0.0  0.0  0.34  1.0
  Cd  Cd3  3  0.0  0.0  0.02  1.0

Zr Zn Zn Cd
Zr Zn Zn Cd 0 2 o o + 0 2 o + o 0 2 + o o 0 3 - - o 0 3 - o - 0 3 o - - 0 1 - o o 0 1 o - o 0 1 o o - 1 2 o + + 1 2 + o + 1 2 + + o 1 3 - o o 1 3 o - o 1 3 o o - 2 3 - - - 
ZrCdZn2 crystallizes in the trigonal R3m space group. Zr(1) is bonded in a 10-coordinate geometry to three equivalent Cd(1), three equivalent Zn(1), and four equivalent Zn(2) atoms. All Zr(1)-Cd(1) bond lengths are 2.71 Å. All Zr(1)-Zn(1) bond lengths are 2.71 Å. There are three shorter (2.72 Å) and one longer (3.69 Å) Zr(1)-Zn(2) bond length. Cd(1) is bonded in a single-bond geometry to three equivalent Zr(1) and one Zn(2) atom. The Cd(1)-Zn(2) bond length is 0.22 Å. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a distorted trigonal planar geometry to three equivalent Zr(1) atoms. In the second Zn site, Zn(2) is bonded in a single-bond geometry to four equivalent Zr(1) and one Cd(1) atom.