The compound described by U2(PdAu)5 is Frank-Kasper $\mu$ Phase-derived structured and crystallizes in the monoclinic Cm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 16-coordinate geometry to one Pd(3), one Pd(4), two equivalent Pd(2), three equivalent Pd(1), three equivalent Pd(5), two equivalent Au(2), and four equivalent Au(1) atoms. In the second U site, U(2) is bonded in a 16-coordinate geometry to one Pd(2), one Pd(5), two equivalent Pd(3), three equivalent Pd(4), two equivalent Au(1), three equivalent Au(3), and four equivalent Au(2) atoms. There are five inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 12-coordinate geometry to three equivalent U(1), one Pd(2), one Pd(3), three equivalent Pd(5), two equivalent Au(1), and two equivalent Au(2) atoms. In the second Pd site, Pd(2) is bonded in a 12-coordinate geometry to one U(2), two equivalent U(1), one Pd(1), one Pd(5), two equivalent Pd(4), one Au(3), and four equivalent Au(1) atoms. In the third Pd site, Pd(3) is bonded in a 12-coordinate geometry to one U(1), two equivalent U(2), one Pd(1), one Pd(4), two equivalent Pd(5), one Au(3), and four equivalent Au(2) atoms. In the fourth Pd site, Pd(4) is bonded in a 16-coordinate geometry to one U(1), three equivalent U(2), one Pd(3), two equivalent Pd(2), two equivalent Au(2), three equivalent Au(3), and four equivalent Au(1) atoms. In the fifth Pd site, Pd(5) is bonded in a 16-coordinate geometry to one U(2), three equivalent U(1), one Pd(2), two equivalent Pd(3), three equivalent Pd(1), two equivalent Au(1), and four equivalent Au(2) atoms. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded to one U(2), two equivalent U(1), one Pd(1), one Pd(5), two equivalent Pd(2), two equivalent Pd(4), one Au(3), and two equivalent Au(1) atoms to form AuU3Pd6Au3 cuboctahedra that share corners with two equivalent Au(3)U3Pd5Au4 cuboctahedra, corners with four equivalent Au(1)U3Pd6Au3 cuboctahedra, corners with six equivalent Au(2)U3Pd6Au3 cuboctahedra, edges with two equivalent Au(1)U3Pd6Au3 cuboctahedra, edges with four equivalent Au(2)U3Pd6Au3 cuboctahedra, faces with two equivalent Au(2)U3Pd6Au3 cuboctahedra, faces with three equivalent Au(3)U3Pd5Au4 cuboctahedra, and faces with four equivalent Au(1)U3Pd6Au3 cuboctahedra. In the second Au site, Au(2) is bonded to one U(1), two equivalent U(2), one Pd(1), one Pd(4), two equivalent Pd(3), two equivalent Pd(5), one Au(3), and two equivalent Au(2) atoms to form distorted AuU3Pd6Au3 cuboctahedra that share corners with two equivalent Au(3)U3Pd5Au4 cuboctahedra, corners with four equivalent Au(2)U3Pd6Au3 cuboctahedra, corners with six equivalent Au(1)U3Pd6Au3 cuboctahedra, edges with two equivalent Au(2)U3Pd6Au3 cuboctahedra, edges with four equivalent Au(1)U3Pd6Au3 cuboctahedra, faces with two equivalent Au(1)U3Pd6Au3 cuboctahedra, faces with three equivalent Au(3)U3Pd5Au4 cuboctahedra, and faces with four equivalent Au(2)U3Pd6Au3 cuboctahedra. In the third Au site, Au(3) is bonded to three equivalent U(2), one Pd(2), one Pd(3), three equivalent Pd(4), two equivalent Au(1), and two equivalent Au(2) atoms to form AuU3Pd5Au4 cuboctahedra that share corners with four equivalent Au(1)U3Pd6Au3 cuboctahedra, corners with four equivalent Au(2)U3Pd6Au3 cuboctahedra, edges with six equivalent Au(3)U3Pd5Au4 cuboctahedra, faces with six equivalent Au(1)U3Pd6Au3 cuboctahedra, and faces with six equivalent Au(2)U3Pd6Au3 cuboctahedra. is represented by the CIF file [CIF]
data_U2(PdAu)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.436
_cell_length_b   5.436
_cell_length_c   9.414
_cell_angle_alpha   73.473
_cell_angle_beta   73.473
_cell_angle_gamma   59.728
_symmetry_Int_Tables_number   1
_cell_volume   226.947
_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  0.001  0.001  0.002  1.0
  U  U1  1  0.502  0.502  0.500  1.0
  Pd  Pd2  1  0.312  0.312  0.062  1.0
  Pd  Pd3  1  0.562  0.562  0.813  1.0
  Pd  Pd4  1  0.063  0.063  0.312  1.0
  Pd  Pd5  1  0.125  0.125  0.625  1.0
  Pd  Pd6  1  0.624  0.624  0.126  1.0
  Au  Au7  1  0.062  0.562  0.814  1.0
  Au  Au8  1  0.561  0.064  0.310  1.0
  Au  Au9  1  0.562  0.062  0.814  1.0
  Au  Au10  1  0.064  0.561  0.310  1.0
  Au  Au11  1  0.812  0.812  0.563  1.0
[/CIF]
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The compound described by U2(PdAu)5 is Frank-Kasper $\mu$ Phase-derived structured and crystallizes in the monoclinic Cm space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 16-coordinate geometry to one Pd(3), one Pd(4), two equivalent Pd(2), three equivalent Pd(1), three equivalent Pd(5), two equivalent Au(2), and four equivalent Au(1) atoms. In the second U site, U(2) is bonded in a 16-coordinate geometry to one Pd(2), one Pd(5), two equivalent Pd(3), three equivalent Pd(4), two equivalent Au(1), three equivalent Au(3), and four equivalent Au(2) atoms. There are five inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 12-coordinate geometry to three equivalent U(1), one Pd(2), one Pd(3), three equivalent Pd(5), two equivalent Au(1), and two equivalent Au(2) atoms. In the second Pd site, Pd(2) is bonded in a 12-coordinate geometry to one U(2), two equivalent U(1), one Pd(1), one Pd(5), two equivalent Pd(4), one Au(3), and four equivalent Au(1) atoms. In the third Pd site, Pd(3) is bonded in a 12-coordinate geometry to one U(1), two equivalent U(2), one Pd(1), one Pd(4), two equivalent Pd(5), one Au(3), and four equivalent Au(2) atoms. In the fourth Pd site, Pd(4) is bonded in a 16-coordinate geometry to one U(1), three equivalent U(2), one Pd(3), two equivalent Pd(2), two equivalent Au(2), three equivalent Au(3), and four equivalent Au(1) atoms. In the fifth Pd site, Pd(5) is bonded in a 16-coordinate geometry to one U(2), three equivalent U(1), one Pd(2), two equivalent Pd(3), three equivalent Pd(1), two equivalent Au(1), and four equivalent Au(2) atoms. There are three inequivalent Au sites. In the first Au site, Au(1) is bonded to one U(2), two equivalent U(1), one Pd(1), one Pd(5), two equivalent Pd(2), two equivalent Pd(4), one Au(3), and two equivalent Au(1) atoms to form AuU3Pd6Au3 cuboctahedra that share corners with two equivalent Au(3)U3Pd5Au4 cuboctahedra, corners with four equivalent Au(1)U3Pd6Au3 cuboctahedra, corners with six equivalent Au(2)U3Pd6Au3 cuboctahedra, edges with two equivalent Au(1)U3Pd6Au3 cuboctahedra, edges with four equivalent Au(2)U3Pd6Au3 cuboctahedra, faces with two equivalent Au(2)U3Pd6Au3 cuboctahedra, faces with three equivalent Au(3)U3Pd5Au4 cuboctahedra, and faces with four equivalent Au(1)U3Pd6Au3 cuboctahedra. In the second Au site, Au(2) is bonded to one U(1), two equivalent U(2), one Pd(1), one Pd(4), two equivalent Pd(3), two equivalent Pd(5), one Au(3), and two equivalent Au(2) atoms to form distorted AuU3Pd6Au3 cuboctahedra that share corners with two equivalent Au(3)U3Pd5Au4 cuboctahedra, corners with four equivalent Au(2)U3Pd6Au3 cuboctahedra, corners with six equivalent Au(1)U3Pd6Au3 cuboctahedra, edges with two equivalent Au(2)U3Pd6Au3 cuboctahedra, edges with four equivalent Au(1)U3Pd6Au3 cuboctahedra, faces with two equivalent Au(1)U3Pd6Au3 cuboctahedra, faces with three equivalent Au(3)U3Pd5Au4 cuboctahedra, and faces with four equivalent Au(2)U3Pd6Au3 cuboctahedra. In the third Au site, Au(3) is bonded to three equivalent U(2), one Pd(2), one Pd(3), three equivalent Pd(4), two equivalent Au(1), and two equivalent Au(2) atoms to form AuU3Pd5Au4 cuboctahedra that share corners with four equivalent Au(1)U3Pd6Au3 cuboctahedra, corners with four equivalent Au(2)U3Pd6Au3 cuboctahedra, edges with six equivalent Au(3)U3Pd5Au4 cuboctahedra, faces with six equivalent Au(1)U3Pd6Au3 cuboctahedra, and faces with six equivalent Au(2)U3Pd6Au3 cuboctahedra. is represented by the CIF file [CIF]
data_U2(PdAu)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.436
_cell_length_b   5.436
_cell_length_c   9.414
_cell_angle_alpha   73.473
_cell_angle_beta   73.473
_cell_angle_gamma   59.728
_symmetry_Int_Tables_number   1
_cell_volume   226.947
_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  0.001  0.001  0.002  1.0
  U  U1  1  0.502  0.502  0.500  1.0
  Pd  Pd2  1  0.312  0.312  0.062  1.0
  Pd  Pd3  1  0.562  0.562  0.813  1.0
  Pd  Pd4  1  0.063  0.063  0.312  1.0
  Pd  Pd5  1  0.125  0.125  0.625  1.0
  Pd  Pd6  1  0.624  0.624  0.126  1.0
  Au  Au7  1  0.062  0.562  0.814  1.0
  Au  Au8  1  0.561  0.064  0.310  1.0
  Au  Au9  1  0.562  0.062  0.814  1.0
  Au  Au10  1  0.064  0.561  0.310  1.0
  Au  Au11  1  0.812  0.812  0.563  1.0
[/CIF]
.