Ce5Ge4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to one Ge(3), two equivalent Ge(2), and three equivalent Ge(1) atoms. In the second Ce site, Ce(2) is bonded in a 7-coordinate geometry to one Ge(2), two equivalent Ge(3), and four equivalent Ge(1) atoms. In the third Ce site, Ce(3) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form corner-sharing CeGe6 octahedra. The corner-sharing octahedral tilt angles range from 52-58°. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(3), four equivalent Ce(2), and one Ge(2) atom. In the second Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Ce(3), three equivalent Ce(1), and four equivalent Ce(2) atoms. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ce(2), two equivalent Ce(3), four equivalent Ce(1), and one Ge(3) atom.
Ce5Ge4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to one Ge(3), two equivalent Ge(2), and three equivalent Ge(1) atoms. The Ce(1)-Ge(3) bond length is 3.12 Å. There is one shorter (3.08 Å) and one longer (3.12 Å) Ce(1)-Ge(2) bond length. There are a spread of Ce(1)-Ge(1) bond distances ranging from 2.96-3.05 Å. In the second Ce site, Ce(2) is bonded in a 7-coordinate geometry to one Ge(2), two equivalent Ge(3), and four equivalent Ge(1) atoms. The Ce(2)-Ge(2) bond length is 3.25 Å. There is one shorter (3.07 Å) and one longer (3.24 Å) Ce(2)-Ge(3) bond length. There are a spread of Ce(2)-Ge(1) bond distances ranging from 3.05-3.66 Å. In the third Ce site, Ce(3) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form corner-sharing CeGe6 octahedra. The corner-sharing octahedral tilt angles range from 52-58°. Both Ce(3)-Ge(1) bond lengths are 3.11 Å. There is one shorter (3.09 Å) and one longer (3.20 Å) Ce(3)-Ge(2) bond length. There is one shorter (3.07 Å) and one longer (3.18 Å) Ce(3)-Ge(3) bond length. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(3), four equivalent Ce(2), and one Ge(2) atom. The Ge(3)-Ge(2) bond length is 2.69 Å. In the second Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Ce(3), three equivalent Ce(1), and four equivalent Ce(2) atoms. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ce(2), two equivalent Ce(3), four equivalent Ce(1), and one Ge(3) atom.