The material described by U3Yb crystallizes in the hexagonal P6_3/mmc space group. U(1) is bonded to eight equivalent U(1) and four equivalent Yb(1) atoms to form distorted UYb4U8 cuboctahedra that share corners with four equivalent Yb(1)U12 cuboctahedra, corners with fourteen equivalent U(1)Yb4U8 cuboctahedra, edges with six equivalent Yb(1)U12 cuboctahedra, edges with twelve equivalent U(1)Yb4U8 cuboctahedra, faces with four equivalent Yb(1)U12 cuboctahedra, and faces with sixteen equivalent U(1)Yb4U8 cuboctahedra. Yb(1) is bonded to twelve equivalent U(1) atoms to form YbU12 cuboctahedra that share corners with six equivalent Yb(1)U12 cuboctahedra, corners with twelve equivalent U(1)Yb4U8 cuboctahedra, edges with eighteen equivalent U(1)Yb4U8 cuboctahedra, faces with eight equivalent Yb(1)U12 cuboctahedra, and faces with twelve equivalent U(1)Yb4U8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbU3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.337
_cell_length_b   6.337
_cell_length_c   5.302
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   184.378
_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
  Yb  Yb0  1  0.333  0.667  0.750  1.0
  Yb  Yb1  1  0.667  0.333  0.250  1.0
  U  U2  1  0.146  0.292  0.250  1.0
  U  U3  1  0.708  0.854  0.250  1.0
  U  U4  1  0.146  0.854  0.250  1.0
  U  U5  1  0.854  0.708  0.750  1.0
  U  U6  1  0.292  0.146  0.750  1.0
  U  U7  1  0.854  0.146  0.750  1.0
[/CIF]
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The material described by U3Yb crystallizes in the hexagonal P6_3/mmc space group. U(1) is bonded to eight equivalent U(1) and four equivalent Yb(1) atoms to form distorted UYb4U8 cuboctahedra that share corners with four equivalent Yb(1)U12 cuboctahedra, corners with fourteen equivalent U(1)Yb4U8 cuboctahedra, edges with six equivalent Yb(1)U12 cuboctahedra, edges with twelve equivalent U(1)Yb4U8 cuboctahedra, faces with four equivalent Yb(1)U12 cuboctahedra, and faces with sixteen equivalent U(1)Yb4U8 cuboctahedra. Yb(1) is bonded to twelve equivalent U(1) atoms to form YbU12 cuboctahedra that share corners with six equivalent Yb(1)U12 cuboctahedra, corners with twelve equivalent U(1)Yb4U8 cuboctahedra, edges with eighteen equivalent U(1)Yb4U8 cuboctahedra, faces with eight equivalent Yb(1)U12 cuboctahedra, and faces with twelve equivalent U(1)Yb4U8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_YbU3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.337
_cell_length_b   6.337
_cell_length_c   5.302
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   184.378
_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
  Yb  Yb0  1  0.333  0.667  0.750  1.0
  Yb  Yb1  1  0.667  0.333  0.250  1.0
  U  U2  1  0.146  0.292  0.250  1.0
  U  U3  1  0.708  0.854  0.250  1.0
  U  U4  1  0.146  0.854  0.250  1.0
  U  U5  1  0.854  0.708  0.750  1.0
  U  U6  1  0.292  0.146  0.750  1.0
  U  U7  1  0.854  0.146  0.750  1.0
[/CIF]
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