data_HfCrCd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.23
_cell_length_b   6.23
_cell_length_c   6.23
_cell_angle_alpha   150.9
_cell_angle_beta   150.9
_cell_angle_gamma   41.63
_symmetry_Int_Tables_number   1
_chemical_formula_structural   HfCrCd
_chemical_formula_sum   'Hf1 Cr1 Cd1'
_cell_volume   57.09
_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
  Hf  Hf2  1  0.0  0.0  0.96  1.0
  Cr  Cr1  1  0.0  0.0  0.83  1.0
  Cd  Cd0  1  0.0  0.0  0.51  1.0

data_HfCrCd
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.43
_cell_length_b   4.43
_cell_length_c   6.23
_cell_angle_alpha   90.0
_cell_angle_beta   110.81
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   HfCrCd
_chemical_formula_sum   'Hf2 Cr2 Cd2'
_cell_volume   114.19
_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
  Hf  Hf0  2  0.0  0.0  0.04  1.0
  Cr  Cr1  2  0.0  0.0  0.17  1.0
  Cd  Cd2  2  0.0  0.0  0.49  1.0

Hf Cr Cd
Hf Cr Cd 0 1 o o o 1 2 o o o 
HfCrCd crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two HfCrCd clusters. Hf(1) is bonded in a single-bond geometry to one Cr(1) atom. The Hf(1)-Cr(1) bond length is 0.78 Å. Cr(1) is bonded in a single-bond geometry to one Hf(1) and one Cd(1) atom. The Cr(1)-Cd(1) bond length is 1.99 Å. Cd(1) is bonded in a distorted single-bond geometry to one Cr(1) atom.