Nd2Sn3 crystallizes in the triclinic P-1 space group. There are four inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 9-coordinate geometry to one Sn(5), two equivalent Sn(3), two equivalent Sn(4), two equivalent Sn(6), and three equivalent Sn(1) atoms. In the second Nd site, Nd(2) is bonded in a 9-coordinate geometry to one Sn(1), one Sn(3), one Sn(4), one Sn(6), two equivalent Sn(2), and three equivalent Sn(5) atoms. In the third Nd site, Nd(3) is bonded in a 9-coordinate geometry to one Sn(3), one Sn(4), one Sn(5), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(6) atoms. In the fourth Nd site, Nd(4) is bonded in a 8-coordinate geometry to one Sn(3), one Sn(4), one Sn(6), two equivalent Sn(5), and three equivalent Sn(2) atoms. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Nd(2), two equivalent Nd(3), three equivalent Nd(1), one Sn(1), and one Sn(6) atom. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to two equivalent Nd(2), two equivalent Nd(3), three equivalent Nd(4), one Sn(5), and one Sn(6) atom. In the third Sn site, Sn(3) is bonded in a 7-coordinate geometry to one Nd(2), one Nd(3), one Nd(4), two equivalent Nd(1), and two equivalent Sn(4) atoms. In the fourth Sn site, Sn(4) is bonded in a 7-coordinate geometry to one Nd(2), one Nd(3), one Nd(4), two equivalent Nd(1), and two equivalent Sn(3) atoms. In the fifth Sn site, Sn(5) is bonded in a 10-coordinate geometry to one Nd(1), one Nd(3), two equivalent Nd(4), three equivalent Nd(2), one Sn(2), one Sn(5), and one Sn(6) atom. In the sixth Sn site, Sn(6) is bonded in a 9-coordinate geometry to one Nd(2), one Nd(4), two equivalent Nd(1), two equivalent Nd(3), one Sn(1), one Sn(2), and one Sn(5) atom.
Nd2Sn3 crystallizes in the triclinic P-1 space group. There are four inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 9-coordinate geometry to one Sn(5), two equivalent Sn(3), two equivalent Sn(4), two equivalent Sn(6), and three equivalent Sn(1) atoms. The Nd(1)-Sn(5) bond length is 3.44 Å. There is one shorter (3.26 Å) and one longer (3.33 Å) Nd(1)-Sn(3) bond length. There is one shorter (3.25 Å) and one longer (3.31 Å) Nd(1)-Sn(4) bond length. There is one shorter (3.27 Å) and one longer (3.34 Å) Nd(1)-Sn(6) bond length. There are a spread of Nd(1)-Sn(1) bond distances ranging from 3.30-3.79 Å. In the second Nd site, Nd(2) is bonded in a 9-coordinate geometry to one Sn(1), one Sn(3), one Sn(4), one Sn(6), two equivalent Sn(2), and three equivalent Sn(5) atoms. The Nd(2)-Sn(1) bond length is 3.20 Å. The Nd(2)-Sn(3) bond length is 3.34 Å. The Nd(2)-Sn(4) bond length is 3.31 Å. The Nd(2)-Sn(6) bond length is 3.54 Å. There is one shorter (3.31 Å) and one longer (3.49 Å) Nd(2)-Sn(2) bond length. There are a spread of Nd(2)-Sn(5) bond distances ranging from 3.36-3.59 Å. In the third Nd site, Nd(3) is bonded in a 9-coordinate geometry to one Sn(3), one Sn(4), one Sn(5), two equivalent Sn(1), two equivalent Sn(2), and two equivalent Sn(6) atoms. The Nd(3)-Sn(3) bond length is 3.28 Å. The Nd(3)-Sn(4) bond length is 3.29 Å. The Nd(3)-Sn(5) bond length is 3.52 Å. There is one shorter (3.23 Å) and one longer (3.56 Å) Nd(3)-Sn(1) bond length. There is one shorter (3.29 Å) and one longer (3.77 Å) Nd(3)-Sn(2) bond length. There is one shorter (3.31 Å) and one longer (3.34 Å) Nd(3)-Sn(6) bond length. In the fourth Nd site, Nd(4) is bonded in a 8-coordinate geometry to one Sn(3), one Sn(4), one Sn(6), two equivalent Sn(5), and three equivalent Sn(2) atoms. The Nd(4)-Sn(3) bond length is 3.17 Å. The Nd(4)-Sn(4) bond length is 3.12 Å. The Nd(4)-Sn(6) bond length is 3.44 Å. There is one shorter (3.30 Å) and one longer (3.36 Å) Nd(4)-Sn(5) bond length. There are a spread of Nd(4)-Sn(2) bond distances ranging from 3.32-3.63 Å. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 8-coordinate geometry to one Nd(2), two equivalent Nd(3), three equivalent Nd(1), one Sn(1), and one Sn(6) atom. The Sn(1)-Sn(1) bond length is 3.03 Å. The Sn(1)-Sn(6) bond length is 3.00 Å. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to two equivalent Nd(2), two equivalent Nd(3), three equivalent Nd(4), one Sn(5), and one Sn(6) atom. The Sn(2)-Sn(5) bond length is 3.16 Å. The Sn(2)-Sn(6) bond length is 2.94 Å. In the third Sn site, Sn(3) is bonded in a 7-coordinate geometry to one Nd(2), one Nd(3), one Nd(4), two equivalent Nd(1), and two equivalent Sn(4) atoms. There is one shorter (2.91 Å) and one longer (2.94 Å) Sn(3)-Sn(4) bond length. In the fourth Sn site, Sn(4) is bonded in a 7-coordinate geometry to one Nd(2), one Nd(3), one Nd(4), two equivalent Nd(1), and two equivalent Sn(3) atoms. In the fifth Sn site, Sn(5) is bonded in a 10-coordinate geometry to one Nd(1), one Nd(3), two equivalent Nd(4), three equivalent Nd(2), one Sn(2), one Sn(5), and one Sn(6) atom. The Sn(5)-Sn(5) bond length is 3.27 Å. The Sn(5)-Sn(6) bond length is 3.04 Å. In the sixth Sn site, Sn(6) is bonded in a 9-coordinate geometry to one Nd(2), one Nd(4), two equivalent Nd(1), two equivalent Nd(3), one Sn(1), one Sn(2), and one Sn(5) atom.