The material structure described by HfNi5 crystallizes in the cubic F-43m space group. Hf(1) is bonded in a 16-coordinate geometry to four equivalent Ni(2) and twelve equivalent Ni(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to three equivalent Hf(1), three equivalent Ni(2), and six equivalent Ni(1) atoms to form a mixture of distorted edge, face, and corner-sharing NiHf3Ni9 cuboctahedra. In the second Ni site, Ni(2) is bonded in a 16-coordinate geometry to four equivalent Hf(1) and twelve equivalent Ni(1) atoms. is represented by the CIF file [CIF]
data_HfNi5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.664
_cell_length_b   4.664
_cell_length_c   4.664
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   71.745
_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  0.000  0.000  0.000  1.0
  Ni  Ni1  1  0.128  0.624  0.624  1.0
  Ni  Ni2  1  0.624  0.128  0.624  1.0
  Ni  Ni3  1  0.250  0.250  0.250  1.0
  Ni  Ni4  1  0.624  0.624  0.128  1.0
  Ni  Ni5  1  0.624  0.624  0.624  1.0
[/CIF]
.
The material structure described by HfNi5 crystallizes in the cubic F-43m space group. Hf(1) is bonded in a 16-coordinate geometry to four equivalent Ni(2) and twelve equivalent Ni(1) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to three equivalent Hf(1), three equivalent Ni(2), and six equivalent Ni(1) atoms to form a mixture of distorted edge, face, and corner-sharing NiHf3Ni9 cuboctahedra. In the second Ni site, Ni(2) is bonded in a 16-coordinate geometry to four equivalent Hf(1) and twelve equivalent Ni(1) atoms. is represented by the CIF file [CIF]
data_HfNi5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.664
_cell_length_b   4.664
_cell_length_c   4.664
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   71.745
_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  0.000  0.000  0.000  1.0
  Ni  Ni1  1  0.128  0.624  0.624  1.0
  Ni  Ni2  1  0.624  0.128  0.624  1.0
  Ni  Ni3  1  0.250  0.250  0.250  1.0
  Ni  Ni4  1  0.624  0.624  0.128  1.0
  Ni  Ni5  1  0.624  0.624  0.624  1.0
[/CIF]
.