ErPdAs crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 11-coordinate geometry to six equivalent Pd(1) and five equivalent As(1) atoms. Pd(1) is bonded to six equivalent Er(1), two equivalent Pd(1), and four equivalent As(1) atoms to form a mixture of distorted face, corner, and edge-sharing PdEr6As4Pd2 cuboctahedra. As(1) is bonded in a 9-coordinate geometry to five equivalent Er(1) and four equivalent Pd(1) atoms.
ErPdAs crystallizes in the orthorhombic Pnma space group. Er(1) is bonded in a 11-coordinate geometry to six equivalent Pd(1) and five equivalent As(1) atoms. There are a spread of Er(1)-Pd(1) bond distances ranging from 3.03-3.39 Å. There are a spread of Er(1)-As(1) bond distances ranging from 2.87-2.96 Å. Pd(1) is bonded to six equivalent Er(1), two equivalent Pd(1), and four equivalent As(1) atoms to form a mixture of distorted face, corner, and edge-sharing PdEr6As4Pd2 cuboctahedra. Both Pd(1)-Pd(1) bond lengths are 3.02 Å. There are a spread of Pd(1)-As(1) bond distances ranging from 2.59-2.82 Å. As(1) is bonded in a 9-coordinate geometry to five equivalent Er(1) and four equivalent Pd(1) atoms.