The crystal structure described by U3Dy is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to four equivalent U(1), four equivalent U(2), and four equivalent Dy(1) atoms to form UDy4U8 cuboctahedra that share corners with twelve equivalent U(1)Dy4U8 cuboctahedra, edges with eight equivalent U(1)Dy4U8 cuboctahedra, edges with eight equivalent U(2)Dy4U8 cuboctahedra, edges with eight equivalent Dy(1)U12 cuboctahedra, faces with four equivalent U(2)Dy4U8 cuboctahedra, faces with four equivalent Dy(1)U12 cuboctahedra, and faces with ten equivalent U(1)Dy4U8 cuboctahedra. In the second U site, U(2) is bonded to eight equivalent U(1) and four equivalent Dy(1) atoms to form distorted UDy4U8 cuboctahedra that share corners with four equivalent U(2)Dy4U8 cuboctahedra, corners with eight equivalent Dy(1)U12 cuboctahedra, edges with eight equivalent U(2)Dy4U8 cuboctahedra, edges with sixteen equivalent U(1)Dy4U8 cuboctahedra, faces with four equivalent U(2)Dy4U8 cuboctahedra, faces with six equivalent Dy(1)U12 cuboctahedra, and faces with eight equivalent U(1)Dy4U8 cuboctahedra. Dy(1) is bonded to four equivalent U(2) and eight equivalent U(1) atoms to form DyU12 cuboctahedra that share corners with four equivalent Dy(1)U12 cuboctahedra, corners with eight equivalent U(2)Dy4U8 cuboctahedra, edges with eight equivalent Dy(1)U12 cuboctahedra, edges with sixteen equivalent U(1)Dy4U8 cuboctahedra, faces with four equivalent Dy(1)U12 cuboctahedra, faces with six equivalent U(2)Dy4U8 cuboctahedra, and faces with eight equivalent U(1)Dy4U8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_DyU3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.681
_cell_length_b   5.681
_cell_length_c   5.681
_cell_angle_alpha   134.519
_cell_angle_beta   134.519
_cell_angle_gamma   66.279
_symmetry_Int_Tables_number   1
_cell_volume   91.766
_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
  Dy  Dy0  1  0.000  0.000  0.000  1.0
  U  U1  1  0.750  0.250  0.500  1.0
  U  U2  1  0.250  0.750  0.500  1.0
  U  U3  1  0.500  0.500  0.000  1.0
[/CIF]
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The crystal structure described by U3Dy is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to four equivalent U(1), four equivalent U(2), and four equivalent Dy(1) atoms to form UDy4U8 cuboctahedra that share corners with twelve equivalent U(1)Dy4U8 cuboctahedra, edges with eight equivalent U(1)Dy4U8 cuboctahedra, edges with eight equivalent U(2)Dy4U8 cuboctahedra, edges with eight equivalent Dy(1)U12 cuboctahedra, faces with four equivalent U(2)Dy4U8 cuboctahedra, faces with four equivalent Dy(1)U12 cuboctahedra, and faces with ten equivalent U(1)Dy4U8 cuboctahedra. In the second U site, U(2) is bonded to eight equivalent U(1) and four equivalent Dy(1) atoms to form distorted UDy4U8 cuboctahedra that share corners with four equivalent U(2)Dy4U8 cuboctahedra, corners with eight equivalent Dy(1)U12 cuboctahedra, edges with eight equivalent U(2)Dy4U8 cuboctahedra, edges with sixteen equivalent U(1)Dy4U8 cuboctahedra, faces with four equivalent U(2)Dy4U8 cuboctahedra, faces with six equivalent Dy(1)U12 cuboctahedra, and faces with eight equivalent U(1)Dy4U8 cuboctahedra. Dy(1) is bonded to four equivalent U(2) and eight equivalent U(1) atoms to form DyU12 cuboctahedra that share corners with four equivalent Dy(1)U12 cuboctahedra, corners with eight equivalent U(2)Dy4U8 cuboctahedra, edges with eight equivalent Dy(1)U12 cuboctahedra, edges with sixteen equivalent U(1)Dy4U8 cuboctahedra, faces with four equivalent Dy(1)U12 cuboctahedra, faces with six equivalent U(2)Dy4U8 cuboctahedra, and faces with eight equivalent U(1)Dy4U8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_DyU3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.681
_cell_length_b   5.681
_cell_length_c   5.681
_cell_angle_alpha   134.519
_cell_angle_beta   134.519
_cell_angle_gamma   66.279
_symmetry_Int_Tables_number   1
_cell_volume   91.766
_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
  Dy  Dy0  1  0.000  0.000  0.000  1.0
  U  U1  1  0.750  0.250  0.500  1.0
  U  U2  1  0.250  0.750  0.500  1.0
  U  U3  1  0.500  0.500  0.000  1.0
[/CIF]
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