The material described by UNi5 crystallizes in the cubic F-43m space group. U(1) is bonded in a 16-coordinate geometry to four equivalent Ni(1) and twelve equivalent Ni(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 16-coordinate geometry to four equivalent U(1) and twelve equivalent Ni(2) atoms. In the second Ni site, Ni(2) is bonded to three equivalent U(1), three equivalent Ni(1), and six equivalent Ni(2) atoms to form a mixture of distorted face, corner, and edge-sharing NiU3Ni9 cuboctahedra. is represented by the CIF card [CIF]
data_UNi5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.730
_cell_length_b   4.730
_cell_length_c   4.730
_cell_angle_alpha   60.002
_cell_angle_beta   60.002
_cell_angle_gamma   60.002
_symmetry_Int_Tables_number   1
_cell_volume   74.846
_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
  U  U0  1  1.000  0.000  0.000  1.0
  Ni  Ni1  1  0.250  0.250  0.250  1.0
  Ni  Ni2  1  0.624  0.624  0.624  1.0
  Ni  Ni3  1  0.624  0.624  0.128  1.0
  Ni  Ni4  1  0.128  0.624  0.624  1.0
  Ni  Ni5  1  0.624  0.128  0.624  1.0
[/CIF]
.
The material described by UNi5 crystallizes in the cubic F-43m space group. U(1) is bonded in a 16-coordinate geometry to four equivalent Ni(1) and twelve equivalent Ni(2) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 16-coordinate geometry to four equivalent U(1) and twelve equivalent Ni(2) atoms. In the second Ni site, Ni(2) is bonded to three equivalent U(1), three equivalent Ni(1), and six equivalent Ni(2) atoms to form a mixture of distorted face, corner, and edge-sharing NiU3Ni9 cuboctahedra. is represented by the CIF card [CIF]
data_UNi5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.730
_cell_length_b   4.730
_cell_length_c   4.730
_cell_angle_alpha   60.002
_cell_angle_beta   60.002
_cell_angle_gamma   60.002
_symmetry_Int_Tables_number   1
_cell_volume   74.846
_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
  U  U0  1  1.000  0.000  0.000  1.0
  Ni  Ni1  1  0.250  0.250  0.250  1.0
  Ni  Ni2  1  0.624  0.624  0.624  1.0
  Ni  Ni3  1  0.624  0.624  0.128  1.0
  Ni  Ni4  1  0.128  0.624  0.624  1.0
  Ni  Ni5  1  0.624  0.128  0.624  1.0
[/CIF]
.