UPdAs2 is Parent of FeAs superconductors-derived structured and crystallizes in the tetragonal P4/nmm space group. U(1) is bonded to four equivalent Pd(1), four equivalent As(1), and four equivalent As(2) atoms to form distorted UAs8Pd4 cuboctahedra that share corners with four equivalent U(1)As8Pd4 cuboctahedra, edges with eight equivalent U(1)As8Pd4 cuboctahedra, edges with eight equivalent Pd(1)U4As4Pd4 cuboctahedra, faces with four equivalent U(1)As8Pd4 cuboctahedra, and faces with four equivalent Pd(1)U4As4Pd4 cuboctahedra. Pd(1) is bonded to four equivalent U(1), four equivalent Pd(1), and four equivalent As(2) atoms to form PdU4As4Pd4 cuboctahedra that share corners with four equivalent Pd(1)U4As4Pd4 cuboctahedra, edges with eight equivalent U(1)As8Pd4 cuboctahedra, faces with four equivalent U(1)As8Pd4 cuboctahedra, and faces with eight equivalent Pd(1)U4As4Pd4 cuboctahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent As(1) atoms. In the second As site, As(2) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Pd(1) atoms.
UPdAs2 is Parent of FeAs superconductors-derived structured and crystallizes in the tetragonal P4/nmm space group. U(1) is bonded to four equivalent Pd(1), four equivalent As(1), and four equivalent As(2) atoms to form distorted UAs8Pd4 cuboctahedra that share corners with four equivalent U(1)As8Pd4 cuboctahedra, edges with eight equivalent U(1)As8Pd4 cuboctahedra, edges with eight equivalent Pd(1)U4As4Pd4 cuboctahedra, faces with four equivalent U(1)As8Pd4 cuboctahedra, and faces with four equivalent Pd(1)U4As4Pd4 cuboctahedra. All U(1)-Pd(1) bond lengths are 3.26 Å. All U(1)-As(1) bond lengths are 3.04 Å. All U(1)-As(2) bond lengths are 2.93 Å. Pd(1) is bonded to four equivalent U(1), four equivalent Pd(1), and four equivalent As(2) atoms to form PdU4As4Pd4 cuboctahedra that share corners with four equivalent Pd(1)U4As4Pd4 cuboctahedra, edges with eight equivalent U(1)As8Pd4 cuboctahedra, faces with four equivalent U(1)As8Pd4 cuboctahedra, and faces with eight equivalent Pd(1)U4As4Pd4 cuboctahedra. All Pd(1)-Pd(1) bond lengths are 2.81 Å. All Pd(1)-As(2) bond lengths are 2.66 Å. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent As(1) atoms. All As(1)-As(1) bond lengths are 2.81 Å. In the second As site, As(2) is bonded in a 8-coordinate geometry to four equivalent U(1) and four equivalent Pd(1) atoms.