Ag3Cd is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to eight equivalent Ag(1) and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with four equivalent Cd(1)Ag12 cuboctahedra; corners with fourteen Ag(1,1)Cd4Ag8 cuboctahedra; edges with six equivalent Cd(1)Ag12 cuboctahedra; edges with twelve equivalent Ag(1)Cd4Ag8 cuboctahedra; faces with four equivalent Cd(1)Ag12 cuboctahedra; and faces with sixteen Ag(1,1,1)Cd4Ag8 cuboctahedra. In the second Ag site, Ag(1) is bonded to eight Ag(1,1,1) and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with four equivalent Cd(1)Ag12 cuboctahedra; corners with fourteen Ag(1,1)Cd4Ag8 cuboctahedra; edges with six equivalent Cd(1)Ag12 cuboctahedra; edges with twelve Ag(1,1,1)Cd4Ag8 cuboctahedra; faces with four equivalent Cd(1)Ag12 cuboctahedra; and faces with sixteen Ag(1,1,1)Cd4Ag8 cuboctahedra. In the third Ag site, Ag(1) is bonded to eight equivalent Ag(1) and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with four equivalent Cd(1)Ag12 cuboctahedra; corners with fourteen Ag(1,1)Cd4Ag8 cuboctahedra; edges with six equivalent Cd(1)Ag12 cuboctahedra; edges with twelve equivalent Ag(1)Cd4Ag8 cuboctahedra; faces with four equivalent Cd(1)Ag12 cuboctahedra; and faces with sixteen Ag(1,1,1)Cd4Ag8 cuboctahedra. Cd(1) is bonded to twelve Ag(1,1,1) atoms to form CdAg12 cuboctahedra that share corners with six equivalent Cd(1)Ag12 cuboctahedra; corners with twelve Ag(1,1)Cd4Ag8 cuboctahedra; edges with eighteen Ag(1,1,1)Cd4Ag8 cuboctahedra; faces with eight equivalent Cd(1)Ag12 cuboctahedra; and faces with twelve Ag(1,1,1)Cd4Ag8 cuboctahedra.
Ag3Cd is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to eight equivalent Ag(1) and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with four equivalent Cd(1)Ag12 cuboctahedra; corners with fourteen Ag(1,1)Cd4Ag8 cuboctahedra; edges with six equivalent Cd(1)Ag12 cuboctahedra; edges with twelve equivalent Ag(1)Cd4Ag8 cuboctahedra; faces with four equivalent Cd(1)Ag12 cuboctahedra; and faces with sixteen Ag(1,1,1)Cd4Ag8 cuboctahedra. There are a spread of Ag(1)-Ag(1) bond distances ranging from 2.90-2.95 Å. There are two shorter (2.92 Å) and two longer (2.97 Å) Ag(1)-Cd(1) bond lengths. In the second Ag site, Ag(1) is bonded to eight Ag(1,1,1) and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with four equivalent Cd(1)Ag12 cuboctahedra; corners with fourteen Ag(1,1)Cd4Ag8 cuboctahedra; edges with six equivalent Cd(1)Ag12 cuboctahedra; edges with twelve Ag(1,1,1)Cd4Ag8 cuboctahedra; faces with four equivalent Cd(1)Ag12 cuboctahedra; and faces with sixteen Ag(1,1,1)Cd4Ag8 cuboctahedra. There are a spread of Ag(1)-Ag(1,1) bond distances ranging from 2.90-2.95 Å. There are two shorter (2.92 Å) and two longer (2.97 Å) Ag(1)-Cd(1) bond lengths. In the third Ag site, Ag(1) is bonded to eight equivalent Ag(1) and four equivalent Cd(1) atoms to form AgCd4Ag8 cuboctahedra that share corners with four equivalent Cd(1)Ag12 cuboctahedra; corners with fourteen Ag(1,1)Cd4Ag8 cuboctahedra; edges with six equivalent Cd(1)Ag12 cuboctahedra; edges with twelve equivalent Ag(1)Cd4Ag8 cuboctahedra; faces with four equivalent Cd(1)Ag12 cuboctahedra; and faces with sixteen Ag(1,1,1)Cd4Ag8 cuboctahedra. There are two shorter (2.92 Å) and two longer (2.97 Å) Ag(1)-Cd(1) bond lengths. Cd(1) is bonded to twelve Ag(1,1,1) atoms to form CdAg12 cuboctahedra that share corners with six equivalent Cd(1)Ag12 cuboctahedra; corners with twelve Ag(1,1)Cd4Ag8 cuboctahedra; edges with eighteen Ag(1,1,1)Cd4Ag8 cuboctahedra; faces with eight equivalent Cd(1)Ag12 cuboctahedra; and faces with twelve Ag(1,1,1)Cd4Ag8 cuboctahedra.