data_Hf2MnNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.19
_cell_length_b   3.19
_cell_length_c   6.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Hf2MnNi
_chemical_formula_sum   'Hf2 Mn1 Ni1'
_cell_volume   68.12
_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  Hf0  1  0.0  0.0  0.42  1.0
  Hf  Hf1  1  0.6  0.6  0.83  1.0
  Mn  Mn2  1  0.0  0.0  0.56  1.0
  Ni  Ni3  1  0.6  0.6  0.9  1.0

data_Hf2MnNi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.51
_cell_length_b   4.51
_cell_length_c   6.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Hf2MnNi
_chemical_formula_sum   'Hf4 Mn2 Ni2'
_cell_volume   136.24
_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  0.42  1.0
  Hf  Hf1  2  0.1  0.5  0.83  1.0
  Mn  Mn2  2  0.0  0.0  0.56  1.0
  Ni  Ni3  2  0.1  0.5  0.9  1.0

Hf Hf Mn Ni
HfMnHfNi is alpha carbon monoxide-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two HfMn clusters and two HfNi clusters. In each HfMn cluster, Hf(1) is bonded in a single-bond geometry to one Mn(1) atom. The Hf(1)-Mn(1) bond length is 0.94 Å. Mn(1) is bonded in a single-bond geometry to one Hf(1) atom. In each HfNi cluster, Hf(2) is bonded in a single-bond geometry to one Ni(1) atom. The Hf(2)-Ni(1) bond length is 0.49 Å. Ni(1) is bonded in a single-bond geometry to one Hf(2) atom.