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EuPd2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Eu is bonded in a 12-coordinate geometry to twelve equivalent Pd atoms. All Eu–Pd bond lengths are 3.25 Å. Pd is bonded to six equivalent Eu and six equivalent Pd atoms to form a mixture of edge, face, and corner-sharing PdEu6Pd6 cuboctahedra. All Pd–Pd bond lengths are 2.77 Å.
EuPd3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Eu is bonded to twelve equivalent Pd atoms to form a mixture of corner and face-sharing EuPd12 cuboctahedra. All Eu–Pd bond lengths are 2.96 Å. Pd is bonded in a distorted square co-planar geometry to four equivalent Eu atoms.
EuPd crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Eu is bonded in a 7-coordinate geometry to seven equivalent Pd atoms. There are a spread of Eu–Pd bond distances ranging from 3.15–3.22 Å. Pd is bonded in a 9-coordinate geometry to seven equivalent Eu and two equivalent Pd atoms. Both Pd–Pd bond lengths are 2.86 Å.
Eu3Pd2 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. there are three inequivalent Eu sites. In the first Eu site, Eu is bonded in an octahedral geometry to six equivalent Pd atoms. All Eu–Pd bond lengths are 3.17 Å. In the second Eu site, Eu is bonded in a 6-coordinate geometry to six equivalent Pd atoms. There are three shorter (3.05 Å) and three longer (3.22 Å) Eu–Pd bond lengths. In the third Eu site, Eu is bonded in a 5-coordinate geometry to five equivalent Pd atoms. There are a spread of Eu–Pd bond distances ranging from 3.08–3.58 Å. Pd is bonded in a 9-coordinate geometry to eight Eu and one Pd atom. The Pd–Pd bond length is 2.95 Å.
Eu3Pd is H-Phase-derived structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. there are five inequivalent Eu sites. In the first Eu site, Eu is bonded in a distorted T-shaped geometry to three equivalent Eu and three equivalent Pd atoms. All Eu–Eu bond lengths are 4.11 Å. All Eu–Pd bond lengths are 2.95 Å. In the second Eu site, Eu is bonded to twelve Eu atoms to form EuEu12 cuboctahedra that share corners with six equivalent EuEu12 cuboctahedra, corners with six equivalent PdEu6 octahedra, edges with six equivalent EuEu12 cuboctahedra, edges with six equivalent PdEu6 octahedra, and faces with six equivalent EuEu12 cuboctahedra. The corner-sharing octahedral tilt angles are 19°. All Eu–Eu bond lengths are 4.16 Å. In the third Eu site, Eu is bonded in a distorted T-shaped geometry to three equivalent Eu and three equivalent Pd atoms. All Eu–Eu bond lengths are 4.11 Å. All Eu–Pd bond lengths are 2.95 Å. In the fourth Eu site, Eu is bonded to sixteen Eu atoms to form EuEu16 cuboctahedra that share corners with six equivalent EuEu16 cuboctahedra, corners with six equivalent PdEu6 octahedra, edges with ten equivalent EuEu16 cuboctahedra, edges with six equivalent PdEu6 octahedra, and faces with sixteen equivalent EuEu16 cuboctahedra. The corner-sharing octahedral tilt angles are 19°. There are a spread of Eu–Eu bond distances ranging from 4.11–8.32 Å. In the fifth Eu site, Eu is bonded in a distorted T-shaped geometry to three equivalent Eu and three equivalent Pd atoms. All Eu–Pd bond lengths are 2.95 Å. Pd is bonded to six equivalent Eu atoms to form PdEu6 octahedra that share corners with six equivalent EuEu12 cuboctahedra, edges with six equivalent EuEu12 cuboctahedra, and edges with six equivalent PdEu6 octahedra.