Nd4Pd10In21 crystallizes in the monoclinic C2/m space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 14-coordinate geometry to two equivalent Pd(3), two equivalent Pd(4), 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 Nd site, Nd(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 Nd(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 Nd(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 Nd(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 Nd(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 Nd(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 Nd(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 Nd(1), one Nd(2), one Pd(2), two equivalent Pd(3), two equivalent Pd(5), and one In(10) atom. In the fifth In site, In(5) is bonded in a 4-coordinate geometry to one Nd(1), two equivalent Nd(2), one Pd(1), one Pd(5), and two equivalent Pd(4) atoms. In the sixth In site, In(6) is bonded in a distorted trigonal non-coplanar geometry to one Nd(2), two equivalent Pd(4), and two equivalent Pd(5) atoms. In the seventh In site, In(7) is bonded in a 3-coordinate geometry to one Nd(2), two equivalent Nd(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 Nd(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 Nd(1), one Pd(3), one Pd(5), two equivalent Pd(4), and two equivalent In(10) atoms. In the tenth In site, In(10) is bonded in a 12-coordinate geometry to three equivalent Nd(1), one Pd(4), three equivalent Pd(3), one In(4), two equivalent In(10), and two equivalent In(9) atoms. In the eleventh In site, In(11) is bonded in a 3-coordinate geometry to three equivalent Nd(2) and three equivalent Pd(1) atoms.
Nd4Pd10In21 crystallizes in the monoclinic C2/m space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 14-coordinate geometry to two equivalent Pd(3), two equivalent Pd(4), one In(4), one In(5), one In(9), two equivalent In(7), two equivalent In(8), and three equivalent In(10) atoms. Both Nd(1)-Pd(3) bond lengths are 3.39 Å. Both Nd(1)-Pd(4) bond lengths are 3.47 Å. The Nd(1)-In(4) bond length is 3.62 Å. The Nd(1)-In(5) bond length is 3.52 Å. The Nd(1)-In(9) bond length is 3.40 Å. Both Nd(1)-In(7) bond lengths are 3.30 Å. Both Nd(1)-In(8) bond lengths are 3.23 Å. There are two shorter (3.35 Å) and one longer (3.52 Å) Nd(1)-In(10) bond length. In the second Nd site, Nd(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 Nd(2)-Pd(1) bond lengths are 3.45 Å. Both Nd(2)-Pd(5) bond lengths are 3.36 Å. The Nd(2)-In(2) bond length is 3.89 Å. The Nd(2)-In(4) bond length is 3.61 Å. The Nd(2)-In(6) bond length is 3.49 Å. The Nd(2)-In(7) bond length is 3.44 Å. Both Nd(2)-In(3) bond lengths are 3.20 Å. Both Nd(2)-In(5) bond lengths are 3.35 Å. There are two shorter (3.33 Å) and one longer (3.49 Å) Nd(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 Nd(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 2.70 Å. The Pd(1)-In(5) bond length is 2.86 Å. Both Pd(1)-In(7) bond lengths are 2.78 Å. All Pd(1)-In(11) bond lengths are 2.81 Å. 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 2.83 Å. Both Pd(2)-In(1) bond lengths are 2.84 Å. There is one shorter (2.84 Å) and one longer (2.91 Å) Pd(2)-In(2) bond length. Both Pd(2)-In(3) bond lengths are 2.89 Å. Both Pd(2)-In(8) bond lengths are 2.90 Å. In the third Pd site, Pd(3) is bonded in a 9-coordinate geometry to two equivalent Nd(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 2.78 Å. The Pd(3)-In(9) bond length is 2.80 Å. Both Pd(3)-In(4) bond lengths are 2.89 Å. There is one shorter (2.81 Å) and two longer (2.85 Å) Pd(3)-In(10) bond lengths. In the fourth Pd site, Pd(4) is bonded in a 10-coordinate geometry to two equivalent Nd(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 2.91 Å. The Pd(4)-In(7) bond length is 2.84 Å. Both Pd(4)-In(5) bond lengths are 2.84 Å. There is one shorter (2.85 Å) and one longer (3.30 Å) Pd(4)-In(6) bond length. Both Pd(4)-In(9) bond lengths are 2.79 Å. In the fifth Pd site, Pd(5) is bonded in a 9-coordinate geometry to two equivalent Nd(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 2.77 Å. The Pd(5)-In(5) bond length is 2.82 Å. The Pd(5)-In(9) bond length is 2.76 Å. Both Pd(5)-In(4) bond lengths are 2.89 Å. Both Pd(5)-In(6) bond lengths are 2.84 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 Nd(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 Nd(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 Nd(1), one Nd(2), one Pd(2), two equivalent Pd(3), two equivalent Pd(5), and one In(10) atom. The In(4)-In(10) bond length is 3.25 Å. In the fifth In site, In(5) is bonded in a 4-coordinate geometry to one Nd(1), two equivalent Nd(2), one Pd(1), one Pd(5), and two equivalent Pd(4) atoms. In the sixth In site, In(6) is bonded in a distorted trigonal non-coplanar geometry to one Nd(2), two equivalent Pd(4), and two equivalent Pd(5) atoms. In the seventh In site, In(7) is bonded in a 3-coordinate geometry to one Nd(2), two equivalent Nd(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 Nd(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 Nd(1), one Pd(3), one Pd(5), two equivalent Pd(4), and two equivalent In(10) atoms. Both In(9)-In(10) bond lengths are 3.21 Å. In the tenth In site, In(10) is bonded in a 12-coordinate geometry to three equivalent Nd(1), one Pd(4), three equivalent Pd(3), one In(4), two equivalent In(10), and two equivalent In(9) atoms. Both In(10)-In(10) bond lengths are 3.26 Å. In the eleventh In site, In(11) is bonded in a 3-coordinate geometry to three equivalent Nd(2) and three equivalent Pd(1) atoms.