The structure described by UCu5 crystallizes in the cubic F-43m space group. U(1) is bonded in a 16-coordinate geometry to four equivalent Cu(1) and twelve equivalent Cu(2) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 16-coordinate geometry to four equivalent U(1) and twelve equivalent Cu(2) atoms. In the second Cu site, Cu(2) is bonded to three equivalent U(1), three equivalent Cu(1), and six equivalent Cu(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuU3Cu9 cuboctahedra. is represented by the CIF file [CIF]
data_UCu5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.978
_cell_length_b   4.978
_cell_length_c   4.978
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   87.233
_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  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.250  0.250  0.250  1.0
  Cu  Cu2  1  0.624  0.624  0.624  1.0
  Cu  Cu3  1  0.129  0.624  0.624  1.0
  Cu  Cu4  1  0.624  0.129  0.624  1.0
  Cu  Cu5  1  0.624  0.624  0.129  1.0
[/CIF]
.
The structure described by UCu5 crystallizes in the cubic F-43m space group. U(1) is bonded in a 16-coordinate geometry to four equivalent Cu(1) and twelve equivalent Cu(2) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 16-coordinate geometry to four equivalent U(1) and twelve equivalent Cu(2) atoms. In the second Cu site, Cu(2) is bonded to three equivalent U(1), three equivalent Cu(1), and six equivalent Cu(2) atoms to form a mixture of distorted edge, corner, and face-sharing CuU3Cu9 cuboctahedra. is represented by the CIF file [CIF]
data_UCu5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.978
_cell_length_b   4.978
_cell_length_c   4.978
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   87.233
_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  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.250  0.250  0.250  1.0
  Cu  Cu2  1  0.624  0.624  0.624  1.0
  Cu  Cu3  1  0.129  0.624  0.624  1.0
  Cu  Cu4  1  0.624  0.129  0.624  1.0
  Cu  Cu5  1  0.624  0.624  0.129  1.0
[/CIF]
.