AgCd3 crystallizes in the hexagonal P-6m2 space group. Ag(1) is bonded to six equivalent Cd(2) atoms to form distorted AgCd6 cuboctahedra that share corners with twelve equivalent Cd(1)Cd12 cuboctahedra, corners with twelve equivalent Cd(2)Cd9Ag3 cuboctahedra, edges with six equivalent Ag(1)Cd6 cuboctahedra, edges with twelve equivalent Cd(2)Cd9Ag3 cuboctahedra, and faces with two equivalent Cd(1)Cd12 cuboctahedra. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to six equivalent Cd(1) and six equivalent Cd(2) atoms to form CdCd12 cuboctahedra that share corners with six equivalent Cd(1)Cd12 cuboctahedra, corners with twelve equivalent Ag(1)Cd6 cuboctahedra, edges with six equivalent Cd(1)Cd12 cuboctahedra, edges with twelve equivalent Cd(2)Cd9Ag3 cuboctahedra, faces with two equivalent Ag(1)Cd6 cuboctahedra, faces with six equivalent Cd(1)Cd12 cuboctahedra, and faces with twelve equivalent Cd(2)Cd9Ag3 cuboctahedra. In the second Cd site, Cd(2) is bonded to three equivalent Ag(1), three equivalent Cd(1), and six equivalent Cd(2) atoms to form distorted CdCd9Ag3 cuboctahedra that share corners with six equivalent Ag(1)Cd6 cuboctahedra, corners with eighteen equivalent Cd(2)Cd9Ag3 cuboctahedra, edges with six equivalent Ag(1)Cd6 cuboctahedra, edges with six equivalent Cd(1)Cd12 cuboctahedra, edges with six equivalent Cd(2)Cd9Ag3 cuboctahedra, faces with six equivalent Cd(1)Cd12 cuboctahedra, and faces with eight equivalent Cd(2)Cd9Ag3 cuboctahedra.
AgCd3 crystallizes in the hexagonal P-6m2 space group. Ag(1) is bonded to six equivalent Cd(2) atoms to form distorted AgCd6 cuboctahedra that share corners with twelve equivalent Cd(1)Cd12 cuboctahedra, corners with twelve equivalent Cd(2)Cd9Ag3 cuboctahedra, edges with six equivalent Ag(1)Cd6 cuboctahedra, edges with twelve equivalent Cd(2)Cd9Ag3 cuboctahedra, and faces with two equivalent Cd(1)Cd12 cuboctahedra. All Ag(1)-Cd(2) bond lengths are 2.91 Å. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to six equivalent Cd(1) and six equivalent Cd(2) atoms to form CdCd12 cuboctahedra that share corners with six equivalent Cd(1)Cd12 cuboctahedra, corners with twelve equivalent Ag(1)Cd6 cuboctahedra, edges with six equivalent Cd(1)Cd12 cuboctahedra, edges with twelve equivalent Cd(2)Cd9Ag3 cuboctahedra, faces with two equivalent Ag(1)Cd6 cuboctahedra, faces with six equivalent Cd(1)Cd12 cuboctahedra, and faces with twelve equivalent Cd(2)Cd9Ag3 cuboctahedra. All Cd(1)-Cd(1) bond lengths are 3.11 Å. All Cd(1)-Cd(2) bond lengths are 3.10 Å. In the second Cd site, Cd(2) is bonded to three equivalent Ag(1), three equivalent Cd(1), and six equivalent Cd(2) atoms to form distorted CdCd9Ag3 cuboctahedra that share corners with six equivalent Ag(1)Cd6 cuboctahedra, corners with eighteen equivalent Cd(2)Cd9Ag3 cuboctahedra, edges with six equivalent Ag(1)Cd6 cuboctahedra, edges with six equivalent Cd(1)Cd12 cuboctahedra, edges with six equivalent Cd(2)Cd9Ag3 cuboctahedra, faces with six equivalent Cd(1)Cd12 cuboctahedra, and faces with eight equivalent Cd(2)Cd9Ag3 cuboctahedra. All Cd(2)-Cd(2) bond lengths are 3.11 Å.