The structure described by ULu3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. U(1) is bonded to twelve equivalent Lu(1) atoms to form ULu12 cuboctahedra that share corners with six equivalent U(1)Lu12 cuboctahedra, corners with twelve equivalent Lu(1)Lu8U4 cuboctahedra, edges with eighteen equivalent Lu(1)Lu8U4 cuboctahedra, faces with eight equivalent U(1)Lu12 cuboctahedra, and faces with twelve equivalent Lu(1)Lu8U4 cuboctahedra. Lu(1) is bonded to four equivalent U(1) and eight equivalent Lu(1) atoms to form LuLu8U4 cuboctahedra that share corners with four equivalent U(1)Lu12 cuboctahedra, corners with fourteen equivalent Lu(1)Lu8U4 cuboctahedra, edges with six equivalent U(1)Lu12 cuboctahedra, edges with twelve equivalent Lu(1)Lu8U4 cuboctahedra, faces with four equivalent U(1)Lu12 cuboctahedra, and faces with sixteen equivalent Lu(1)Lu8U4 cuboctahedra. is represented by the CIF file [CIF]
data_Lu3U
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.891
_cell_length_b   6.891
_cell_length_c   5.534
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   227.596
_cell_formula_units_Z   2
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
  Lu  Lu0  1  0.169  0.338  0.250  1.0
  Lu  Lu1  1  0.662  0.831  0.250  1.0
  Lu  Lu2  1  0.169  0.831  0.250  1.0
  Lu  Lu3  1  0.831  0.662  0.750  1.0
  Lu  Lu4  1  0.338  0.169  0.750  1.0
  Lu  Lu5  1  0.831  0.169  0.750  1.0
  U  U6  1  0.333  0.667  0.750  1.0
  U  U7  1  0.667  0.333  0.250  1.0
[/CIF]
.
The structure described by ULu3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. U(1) is bonded to twelve equivalent Lu(1) atoms to form ULu12 cuboctahedra that share corners with six equivalent U(1)Lu12 cuboctahedra, corners with twelve equivalent Lu(1)Lu8U4 cuboctahedra, edges with eighteen equivalent Lu(1)Lu8U4 cuboctahedra, faces with eight equivalent U(1)Lu12 cuboctahedra, and faces with twelve equivalent Lu(1)Lu8U4 cuboctahedra. Lu(1) is bonded to four equivalent U(1) and eight equivalent Lu(1) atoms to form LuLu8U4 cuboctahedra that share corners with four equivalent U(1)Lu12 cuboctahedra, corners with fourteen equivalent Lu(1)Lu8U4 cuboctahedra, edges with six equivalent U(1)Lu12 cuboctahedra, edges with twelve equivalent Lu(1)Lu8U4 cuboctahedra, faces with four equivalent U(1)Lu12 cuboctahedra, and faces with sixteen equivalent Lu(1)Lu8U4 cuboctahedra. is represented by the CIF file [CIF]
data_Lu3U
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.891
_cell_length_b   6.891
_cell_length_c   5.534
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   227.596
_cell_formula_units_Z   2
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
  Lu  Lu0  1  0.169  0.338  0.250  1.0
  Lu  Lu1  1  0.662  0.831  0.250  1.0
  Lu  Lu2  1  0.169  0.831  0.250  1.0
  Lu  Lu3  1  0.831  0.662  0.750  1.0
  Lu  Lu4  1  0.338  0.169  0.750  1.0
  Lu  Lu5  1  0.831  0.169  0.750  1.0
  U  U6  1  0.333  0.667  0.750  1.0
  U  U7  1  0.667  0.333  0.250  1.0
[/CIF]
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