Ag3Ge crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to six equivalent Ag(1) and six equivalent Ag(2) atoms to form AgAg12 cuboctahedra that share corners with six equivalent Ag(1)Ag12 cuboctahedra, corners with twelve equivalent Ge(1)Ag6Ge6 cuboctahedra, edges with six equivalent Ag(1)Ag12 cuboctahedra, edges with twelve equivalent Ag(2)Ag9Ge3 cuboctahedra, faces with two equivalent Ge(1)Ag6Ge6 cuboctahedra, faces with six equivalent Ag(1)Ag12 cuboctahedra, and faces with twelve equivalent Ag(2)Ag9Ge3 cuboctahedra. In the second Ag site, Ag(2) is bonded to three equivalent Ag(1), six equivalent Ag(2), and three equivalent Ge(1) atoms to form AgAg9Ge3 cuboctahedra that share corners with eighteen equivalent Ag(2)Ag9Ge3 cuboctahedra, edges with six equivalent Ag(1)Ag12 cuboctahedra, edges with six equivalent Ag(2)Ag9Ge3 cuboctahedra, edges with six equivalent Ge(1)Ag6Ge6 cuboctahedra, faces with six equivalent Ag(1)Ag12 cuboctahedra, faces with six equivalent Ge(1)Ag6Ge6 cuboctahedra, and faces with eight equivalent Ag(2)Ag9Ge3 cuboctahedra. Ge(1) is bonded to six equivalent Ag(2) and six equivalent Ge(1) atoms to form GeAg6Ge6 cuboctahedra that share corners with six equivalent Ge(1)Ag6Ge6 cuboctahedra, corners with twelve equivalent Ag(1)Ag12 cuboctahedra, edges with six equivalent Ge(1)Ag6Ge6 cuboctahedra, edges with twelve equivalent Ag(2)Ag9Ge3 cuboctahedra, faces with two equivalent Ag(1)Ag12 cuboctahedra, faces with six equivalent Ge(1)Ag6Ge6 cuboctahedra, and faces with twelve equivalent Ag(2)Ag9Ge3 cuboctahedra.
Ag3Ge crystallizes in the hexagonal P-6m2 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to six equivalent Ag(1) and six equivalent Ag(2) atoms to form AgAg12 cuboctahedra that share corners with six equivalent Ag(1)Ag12 cuboctahedra, corners with twelve equivalent Ge(1)Ag6Ge6 cuboctahedra, edges with six equivalent Ag(1)Ag12 cuboctahedra, edges with twelve equivalent Ag(2)Ag9Ge3 cuboctahedra, faces with two equivalent Ge(1)Ag6Ge6 cuboctahedra, faces with six equivalent Ag(1)Ag12 cuboctahedra, and faces with twelve equivalent Ag(2)Ag9Ge3 cuboctahedra. All Ag(1)-Ag(1) bond lengths are 2.99 Å. All Ag(1)-Ag(2) bond lengths are 2.94 Å. In the second Ag site, Ag(2) is bonded to three equivalent Ag(1), six equivalent Ag(2), and three equivalent Ge(1) atoms to form AgAg9Ge3 cuboctahedra that share corners with eighteen equivalent Ag(2)Ag9Ge3 cuboctahedra, edges with six equivalent Ag(1)Ag12 cuboctahedra, edges with six equivalent Ag(2)Ag9Ge3 cuboctahedra, edges with six equivalent Ge(1)Ag6Ge6 cuboctahedra, faces with six equivalent Ag(1)Ag12 cuboctahedra, faces with six equivalent Ge(1)Ag6Ge6 cuboctahedra, and faces with eight equivalent Ag(2)Ag9Ge3 cuboctahedra. All Ag(2)-Ag(2) bond lengths are 2.99 Å. All Ag(2)-Ge(1) bond lengths are 2.92 Å. Ge(1) is bonded to six equivalent Ag(2) and six equivalent Ge(1) atoms to form GeAg6Ge6 cuboctahedra that share corners with six equivalent Ge(1)Ag6Ge6 cuboctahedra, corners with twelve equivalent Ag(1)Ag12 cuboctahedra, edges with six equivalent Ge(1)Ag6Ge6 cuboctahedra, edges with twelve equivalent Ag(2)Ag9Ge3 cuboctahedra, faces with two equivalent Ag(1)Ag12 cuboctahedra, faces with six equivalent Ge(1)Ag6Ge6 cuboctahedra, and faces with twelve equivalent Ag(2)Ag9Ge3 cuboctahedra. All Ge(1)-Ge(1) bond lengths are 2.99 Å.