Ce4Pd10In21 crystallizes in the monoclinic C2/m space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 15-coordinate geometry to two equivalent Pd(3), two equivalent Pd(4), one In(2), one In(4), one In(5), one In(9), two equivalent In(7), two equivalent In(8), and three equivalent In(10) atoms. In the second Ce site, Ce(2) is bonded in a 15-coordinate geometry to two equivalent Pd(1), two equivalent Pd(5), one In(2), one In(4), one In(6), one In(7), two equivalent In(3), two equivalent In(5), and three equivalent In(11) atoms. There are five inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 9-coordinate geometry to two equivalent Ce(2), one In(2), one In(5), two equivalent In(7), and three equivalent In(11) atoms. In the second Pd site, Pd(2) is bonded in a 9-coordinate geometry to one In(4), two equivalent In(1), two equivalent In(2), two equivalent In(3), and two equivalent In(8) atoms. In the third Pd site, Pd(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), one In(8), one In(9), two equivalent In(4), and three equivalent In(10) atoms. In the fourth Pd site, Pd(4) is bonded in a 10-coordinate geometry to two equivalent Ce(1), one In(10), one In(7), two equivalent In(5), two equivalent In(6), and two equivalent In(9) atoms. In the fifth Pd site, Pd(5) is bonded in a 9-coordinate geometry to two equivalent Ce(2), one In(3), one In(5), one In(9), two equivalent In(4), and two equivalent In(6) atoms. There are eleven inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to four equivalent Pd(2) atoms. In the second In site, In(2) is bonded in a 3-coordinate geometry to one Ce(1), one Ce(2), one Pd(1), and two equivalent Pd(2) atoms. In the third In site, In(3) is bonded in a 5-coordinate geometry to two equivalent Ce(2), one Pd(5), and two equivalent Pd(2) atoms. In the fourth In site, In(4) is bonded in a 5-coordinate geometry to one Ce(1), one Ce(2), one Pd(2), two equivalent Pd(3), and two equivalent Pd(5) atoms. In the fifth In site, In(5) is bonded in a 6-coordinate geometry to one Ce(1), two equivalent Ce(2), one Pd(1), one Pd(5), and two equivalent Pd(4) atoms. In the sixth In site, In(6) is bonded in a 3-coordinate geometry to one Ce(2), two equivalent Pd(4), and two equivalent Pd(5) atoms. In the seventh In site, In(7) is bonded in a 5-coordinate geometry to one Ce(2), two equivalent Ce(1), one Pd(4), and two equivalent Pd(1) atoms. In the eighth In site, In(8) is bonded in a 5-coordinate geometry to two equivalent Ce(1), one Pd(3), and two equivalent Pd(2) atoms. In the ninth In site, In(9) is bonded in a 4-coordinate geometry to one Ce(1), one Pd(3), one Pd(5), and two equivalent Pd(4) atoms. In the tenth In site, In(10) is bonded in a 6-coordinate geometry to three equivalent Ce(1), one Pd(4), and three equivalent Pd(3) atoms. In the eleventh In site, In(11) is bonded in a 5-coordinate geometry to three equivalent Ce(2) and three equivalent Pd(1) atoms.
Ce4Pd10In21 crystallizes in the monoclinic C2/m space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 15-coordinate geometry to two equivalent Pd(3), two equivalent Pd(4), one In(2), one In(4), one In(5), one In(9), two equivalent In(7), two equivalent In(8), and three equivalent In(10) atoms. Both Ce(1)-Pd(3) bond lengths are 3.39 Å. Both Ce(1)-Pd(4) bond lengths are 3.48 Å. The Ce(1)-In(2) bond length is 3.94 Å. The Ce(1)-In(4) bond length is 3.64 Å. The Ce(1)-In(5) bond length is 3.58 Å. The Ce(1)-In(9) bond length is 3.39 Å. Both Ce(1)-In(7) bond lengths are 3.24 Å. Both Ce(1)-In(8) bond lengths are 3.18 Å. There are two shorter (3.29 Å) and one longer (3.59 Å) Ce(1)-In(10) bond length. In the second Ce site, Ce(2) is bonded in a 15-coordinate geometry to two equivalent Pd(1), two equivalent Pd(5), one In(2), one In(4), one In(6), one In(7), two equivalent In(3), two equivalent In(5), and three equivalent In(11) atoms. Both Ce(2)-Pd(1) bond lengths are 3.44 Å. Both Ce(2)-Pd(5) bond lengths are 3.34 Å. The Ce(2)-In(2) bond length is 3.94 Å. The Ce(2)-In(4) bond length is 3.66 Å. The Ce(2)-In(6) bond length is 3.51 Å. The Ce(2)-In(7) bond length is 3.50 Å. Both Ce(2)-In(3) bond lengths are 3.19 Å. Both Ce(2)-In(5) bond lengths are 3.31 Å. There are two shorter (3.27 Å) and one longer (3.49 Å) Ce(2)-In(11) bond length. There are five inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 9-coordinate geometry to two equivalent Ce(2), one In(2), one In(5), two equivalent In(7), and three equivalent In(11) atoms. The Pd(1)-In(2) bond length is 2.69 Å. The Pd(1)-In(5) bond length is 2.85 Å. Both Pd(1)-In(7) bond lengths are 2.76 Å. There are two shorter (2.77 Å) and one longer (2.83 Å) Pd(1)-In(11) bond length. In the second Pd site, Pd(2) is bonded in a 9-coordinate geometry to one In(4), two equivalent In(1), two equivalent In(2), two equivalent In(3), and two equivalent In(8) atoms. The Pd(2)-In(4) bond length is 2.86 Å. Both Pd(2)-In(1) bond lengths are 2.79 Å. There is one shorter (2.89 Å) and one longer (2.91 Å) Pd(2)-In(2) bond length. Both Pd(2)-In(3) bond lengths are 2.87 Å. Both Pd(2)-In(8) bond lengths are 2.88 Å. In the third Pd site, Pd(3) is bonded in a 9-coordinate geometry to two equivalent Ce(1), one In(8), one In(9), two equivalent In(4), and three equivalent In(10) atoms. The Pd(3)-In(8) bond length is 2.79 Å. The Pd(3)-In(9) bond length is 2.80 Å. Both Pd(3)-In(4) bond lengths are 2.84 Å. There is one shorter (2.80 Å) and two longer (2.81 Å) Pd(3)-In(10) bond lengths. In the fourth Pd site, Pd(4) is bonded in a 10-coordinate geometry to two equivalent Ce(1), one In(10), one In(7), two equivalent In(5), two equivalent In(6), and two equivalent In(9) atoms. The Pd(4)-In(10) bond length is 2.94 Å. The Pd(4)-In(7) bond length is 2.82 Å. Both Pd(4)-In(5) bond lengths are 2.81 Å. There is one shorter (2.84 Å) and one longer (3.23 Å) Pd(4)-In(6) bond length. Both Pd(4)-In(9) bond lengths are 2.75 Å. In the fifth Pd site, Pd(5) is bonded in a 9-coordinate geometry to two equivalent Ce(2), one In(3), one In(5), one In(9), two equivalent In(4), and two equivalent In(6) atoms. The Pd(5)-In(3) bond length is 2.78 Å. The Pd(5)-In(5) bond length is 2.85 Å. The Pd(5)-In(9) bond length is 2.74 Å. Both Pd(5)-In(4) bond lengths are 2.87 Å. Both Pd(5)-In(6) bond lengths are 2.82 Å. There are eleven inequivalent In sites. In the first In site, In(1) is bonded in a 4-coordinate geometry to four equivalent Pd(2) atoms. In the second In site, In(2) is bonded in a 3-coordinate geometry to one Ce(1), one Ce(2), one Pd(1), and two equivalent Pd(2) atoms. In the third In site, In(3) is bonded in a 5-coordinate geometry to two equivalent Ce(2), one Pd(5), and two equivalent Pd(2) atoms. In the fourth In site, In(4) is bonded in a 5-coordinate geometry to one Ce(1), one Ce(2), one Pd(2), two equivalent Pd(3), and two equivalent Pd(5) atoms. In the fifth In site, In(5) is bonded in a 6-coordinate geometry to one Ce(1), two equivalent Ce(2), one Pd(1), one Pd(5), and two equivalent Pd(4) atoms. In the sixth In site, In(6) is bonded in a 3-coordinate geometry to one Ce(2), two equivalent Pd(4), and two equivalent Pd(5) atoms. In the seventh In site, In(7) is bonded in a 5-coordinate geometry to one Ce(2), two equivalent Ce(1), one Pd(4), and two equivalent Pd(1) atoms. In the eighth In site, In(8) is bonded in a 5-coordinate geometry to two equivalent Ce(1), one Pd(3), and two equivalent Pd(2) atoms. In the ninth In site, In(9) is bonded in a 4-coordinate geometry to one Ce(1), one Pd(3), one Pd(5), and two equivalent Pd(4) atoms. In the tenth In site, In(10) is bonded in a 6-coordinate geometry to three equivalent Ce(1), one Pd(4), and three equivalent Pd(3) atoms. In the eleventh In site, In(11) is bonded in a 5-coordinate geometry to three equivalent Ce(2) and three equivalent Pd(1) atoms.