Ce3Rh4Ge4 crystallizes in the orthorhombic Immm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 14-coordinate geometry to four equivalent Rh(1), four equivalent Rh(2), two equivalent Ge(2), and four equivalent Ge(1) atoms. In the second Ce site, Ce(2) is bonded to four equivalent Rh(1) and eight equivalent Ge(2) atoms to form a mixture of face and edge-sharing CeGe8Rh4 cuboctahedra. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to two equivalent Ce(2), four equivalent Ce(1), one Ge(1), and two equivalent Ge(2) atoms. In the second Rh site, Rh(2) is bonded in a 4-coordinate geometry to four equivalent Ce(1) and four equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent Ce(1), one Rh(1), and four equivalent Rh(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ce(1), four equivalent Ce(2), two equivalent Rh(1), and one Ge(2) atom.
Ce3Rh4Ge4 crystallizes in the orthorhombic Immm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 14-coordinate geometry to four equivalent Rh(1), four equivalent Rh(2), two equivalent Ge(2), and four equivalent Ge(1) atoms. All Ce(1)-Rh(1) bond lengths are 3.17 Å. There are two shorter (3.28 Å) and two longer (3.44 Å) Ce(1)-Rh(2) bond lengths. Both Ce(1)-Ge(2) bond lengths are 3.15 Å. All Ce(1)-Ge(1) bond lengths are 3.20 Å. In the second Ce site, Ce(2) is bonded to four equivalent Rh(1) and eight equivalent Ge(2) atoms to form a mixture of face and edge-sharing CeGe8Rh4 cuboctahedra. All Ce(2)-Rh(1) bond lengths are 3.18 Å. All Ce(2)-Ge(2) bond lengths are 3.19 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 9-coordinate geometry to two equivalent Ce(2), four equivalent Ce(1), one Ge(1), and two equivalent Ge(2) atoms. The Rh(1)-Ge(1) bond length is 2.48 Å. Both Rh(1)-Ge(2) bond lengths are 2.47 Å. In the second Rh site, Rh(2) is bonded in a 4-coordinate geometry to four equivalent Ce(1) and four equivalent Ge(1) atoms. There are two shorter (2.45 Å) and two longer (2.52 Å) Rh(2)-Ge(1) bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent Ce(1), one Rh(1), and four equivalent Rh(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ce(1), four equivalent Ce(2), two equivalent Rh(1), and one Ge(2) atom. The Ge(2)-Ge(2) bond length is 2.48 Å.