K3Re is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to four equivalent K(2) and four equivalent Re(1) atoms. In the second K site, K(2) is bonded to eight equivalent K(1) and four equivalent Re(1) atoms to form distorted KK8Re4 cuboctahedra that share corners with four equivalent K(2)K8Re4 cuboctahedra, corners with eight equivalent Re(1)K12 cuboctahedra, edges with eight equivalent K(2)K8Re4 cuboctahedra, faces with four equivalent K(2)K8Re4 cuboctahedra, and faces with six equivalent Re(1)K12 cuboctahedra. Re(1) is bonded to four equivalent K(2) and eight equivalent K(1) atoms to form ReK12 cuboctahedra that share corners with four equivalent Re(1)K12 cuboctahedra, corners with eight equivalent K(2)K8Re4 cuboctahedra, edges with eight equivalent Re(1)K12 cuboctahedra, faces with four equivalent Re(1)K12 cuboctahedra, and faces with six equivalent K(2)K8Re4 cuboctahedra.
K3Re is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to four equivalent K(2) and four equivalent Re(1) atoms. All K(1)-K(2) bond lengths are 3.87 Å. All K(1)-Re(1) bond lengths are 3.87 Å. In the second K site, K(2) is bonded to eight equivalent K(1) and four equivalent Re(1) atoms to form distorted KK8Re4 cuboctahedra that share corners with four equivalent K(2)K8Re4 cuboctahedra, corners with eight equivalent Re(1)K12 cuboctahedra, edges with eight equivalent K(2)K8Re4 cuboctahedra, faces with four equivalent K(2)K8Re4 cuboctahedra, and faces with six equivalent Re(1)K12 cuboctahedra. All K(2)-Re(1) bond lengths are 4.04 Å. Re(1) is bonded to four equivalent K(2) and eight equivalent K(1) atoms to form ReK12 cuboctahedra that share corners with four equivalent Re(1)K12 cuboctahedra, corners with eight equivalent K(2)K8Re4 cuboctahedra, edges with eight equivalent Re(1)K12 cuboctahedra, faces with four equivalent Re(1)K12 cuboctahedra, and faces with six equivalent K(2)K8Re4 cuboctahedra.