NdPrSb4 crystallizes in the monoclinic C2/m space group. Nd(1) is bonded in a 9-coordinate geometry to four equivalent Sb(1) and five equivalent Sb(3) atoms. Pr(1) is bonded in a 9-coordinate geometry to four equivalent Sb(1) and five equivalent Sb(2) atoms. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to two equivalent Nd(1), two equivalent Pr(1), and four equivalent Sb(1) atoms. In the second Sb site, Sb(2) is bonded in a 6-coordinate geometry to five equivalent Pr(1) and one Sb(2) atom. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to five equivalent Nd(1) and one Sb(3) atom.
NdPrSb4 crystallizes in the monoclinic C2/m space group. Nd(1) is bonded in a 9-coordinate geometry to four equivalent Sb(1) and five equivalent Sb(3) atoms. There are two shorter (3.34 Å) and two longer (3.42 Å) Nd(1)-Sb(1) bond lengths. There are a spread of Nd(1)-Sb(3) bond distances ranging from 3.17-3.51 Å. Pr(1) is bonded in a 9-coordinate geometry to four equivalent Sb(1) and five equivalent Sb(2) atoms. There are two shorter (3.36 Å) and two longer (3.44 Å) Pr(1)-Sb(1) bond lengths. There are a spread of Pr(1)-Sb(2) bond distances ranging from 3.18-3.53 Å. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to two equivalent Nd(1), two equivalent Pr(1), and four equivalent Sb(1) atoms. There are a spread of Sb(1)-Sb(1) bond distances ranging from 3.07-3.18 Å. In the second Sb site, Sb(2) is bonded in a 6-coordinate geometry to five equivalent Pr(1) and one Sb(2) atom. The Sb(2)-Sb(2) bond length is 2.82 Å. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to five equivalent Nd(1) and one Sb(3) atom. The Sb(3)-Sb(3) bond length is 2.82 Å.