ReRh3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Re(1) is bonded to twelve equivalent Rh(1) atoms to form ReRh12 cuboctahedra that share corners with six equivalent Re(1)Rh12 cuboctahedra, corners with twelve equivalent Rh(1)Re4Rh8 cuboctahedra, edges with eighteen equivalent Rh(1)Re4Rh8 cuboctahedra, faces with eight equivalent Re(1)Rh12 cuboctahedra, and faces with twelve equivalent Rh(1)Re4Rh8 cuboctahedra. Rh(1) is bonded to four equivalent Re(1) and eight equivalent Rh(1) atoms to form distorted RhRe4Rh8 cuboctahedra that share corners with four equivalent Re(1)Rh12 cuboctahedra, corners with fourteen equivalent Rh(1)Re4Rh8 cuboctahedra, edges with six equivalent Re(1)Rh12 cuboctahedra, edges with twelve equivalent Rh(1)Re4Rh8 cuboctahedra, faces with four equivalent Re(1)Rh12 cuboctahedra, and faces with sixteen equivalent Rh(1)Re4Rh8 cuboctahedra.
ReRh3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Re(1) is bonded to twelve equivalent Rh(1) atoms to form ReRh12 cuboctahedra that share corners with six equivalent Re(1)Rh12 cuboctahedra, corners with twelve equivalent Rh(1)Re4Rh8 cuboctahedra, edges with eighteen equivalent Rh(1)Re4Rh8 cuboctahedra, faces with eight equivalent Re(1)Rh12 cuboctahedra, and faces with twelve equivalent Rh(1)Re4Rh8 cuboctahedra. There are six shorter (2.67 Å) and six longer (2.73 Å) Re(1)-Rh(1) bond lengths. Rh(1) is bonded to four equivalent Re(1) and eight equivalent Rh(1) atoms to form distorted RhRe4Rh8 cuboctahedra that share corners with four equivalent Re(1)Rh12 cuboctahedra, corners with fourteen equivalent Rh(1)Re4Rh8 cuboctahedra, edges with six equivalent Re(1)Rh12 cuboctahedra, edges with twelve equivalent Rh(1)Re4Rh8 cuboctahedra, faces with four equivalent Re(1)Rh12 cuboctahedra, and faces with sixteen equivalent Rh(1)Re4Rh8 cuboctahedra. There are six shorter (2.69 Å) and two longer (2.76 Å) Rh(1)-Rh(1) bond lengths.