Ce11(Ni2Ge3)2 crystallizes in the monoclinic C2/m space group. There are six inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to one Ni(1), one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. In the second Ce site, Ce(2) is bonded in a 8-coordinate geometry to four equivalent Ni(1), one Ge(1), one Ge(3), and two equivalent Ge(2) atoms. In the third Ce site, Ce(3) is bonded in a 6-coordinate geometry to one Ni(1), two equivalent Ge(1), and three equivalent Ge(2) atoms. In the fourth Ce site, Ce(4) is bonded in a 7-coordinate geometry to three equivalent Ni(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. In the fifth Ce site, Ce(5) is bonded in a 7-coordinate geometry to three equivalent Ni(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. In the sixth Ce site, Ce(6) is bonded in a square co-planar geometry to four equivalent Ge(3) atoms. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to one Ce(1), one Ce(3), four equivalent Ce(2), one Ni(1), and two equivalent Ge(2) atoms. In the second Ni site, Ni(2) is bonded in a 9-coordinate geometry to three equivalent Ce(4), three equivalent Ce(5), two equivalent Ni(2), and one Ge(1) atom. There are three inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), three equivalent Ce(3), and two equivalent Ni(1) atoms. In the second Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Ce(2), two equivalent Ce(1), two equivalent Ce(4), two equivalent Ce(5), and two equivalent Ce(6) atoms. In the third Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Ce(1), one Ce(2), two equivalent Ce(3), two equivalent Ce(4), two equivalent Ce(5), and one Ni(2) atom.
Ce11(Ni2Ge3)2 crystallizes in the monoclinic C2/m space group. There are six inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 6-coordinate geometry to one Ni(1), one Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. The Ce(1)-Ni(1) bond length is 2.89 Å. The Ce(1)-Ge(1) bond length is 3.21 Å. Both Ce(1)-Ge(2) bond lengths are 3.05 Å. Both Ce(1)-Ge(3) bond lengths are 3.08 Å. In the second Ce site, Ce(2) is bonded in a 8-coordinate geometry to four equivalent Ni(1), one Ge(1), one Ge(3), and two equivalent Ge(2) atoms. There are two shorter (2.94 Å) and two longer (3.02 Å) Ce(2)-Ni(1) bond lengths. The Ce(2)-Ge(1) bond length is 3.30 Å. The Ce(2)-Ge(3) bond length is 3.27 Å. There is one shorter (3.05 Å) and one longer (3.14 Å) Ce(2)-Ge(2) bond length. In the third Ce site, Ce(3) is bonded in a 6-coordinate geometry to one Ni(1), two equivalent Ge(1), and three equivalent Ge(2) atoms. The Ce(3)-Ni(1) bond length is 2.80 Å. Both Ce(3)-Ge(1) bond lengths are 3.02 Å. There are two shorter (3.03 Å) and one longer (3.04 Å) Ce(3)-Ge(2) bond length. In the fourth Ce site, Ce(4) is bonded in a 7-coordinate geometry to three equivalent Ni(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. There is one shorter (2.83 Å) and two longer (2.94 Å) Ce(4)-Ni(2) bond lengths. Both Ce(4)-Ge(1) bond lengths are 3.14 Å. Both Ce(4)-Ge(3) bond lengths are 3.11 Å. In the fifth Ce site, Ce(5) is bonded in a 7-coordinate geometry to three equivalent Ni(2), two equivalent Ge(1), and two equivalent Ge(3) atoms. There are two shorter (2.82 Å) and one longer (2.92 Å) Ce(5)-Ni(2) bond length. Both Ce(5)-Ge(1) bond lengths are 3.10 Å. There is one shorter (3.40 Å) and one longer (3.56 Å) Ce(5)-Ge(3) bond length. In the sixth Ce site, Ce(6) is bonded in a square co-planar geometry to four equivalent Ge(3) atoms. All Ce(6)-Ge(3) bond lengths are 3.02 Å. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 9-coordinate geometry to one Ce(1), one Ce(3), four equivalent Ce(2), one Ni(1), and two equivalent Ge(2) atoms. The Ni(1)-Ni(1) bond length is 2.43 Å. Both Ni(1)-Ge(2) bond lengths are 2.52 Å. In the second Ni site, Ni(2) is bonded in a 9-coordinate geometry to three equivalent Ce(4), three equivalent Ce(5), two equivalent Ni(2), and one Ge(1) atom. Both Ni(2)-Ni(2) bond lengths are 2.52 Å. The Ni(2)-Ge(1) bond length is 2.49 Å. There are three inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Ce(1), two equivalent Ce(2), three equivalent Ce(3), and two equivalent Ni(1) atoms. In the second Ge site, Ge(3) is bonded in a 9-coordinate geometry to one Ce(2), two equivalent Ce(1), two equivalent Ce(4), two equivalent Ce(5), and two equivalent Ce(6) atoms. In the third Ge site, Ge(1) is bonded in a 9-coordinate geometry to one Ce(1), one Ce(2), two equivalent Ce(3), two equivalent Ce(4), two equivalent Ce(5), and one Ni(2) atom.