Nd4S7 crystallizes in the tetragonal P-42m space group. Nd(1) is bonded in a 8-coordinate geometry to one S(2), two equivalent S(3), and five equivalent S(1) atoms. There are three inequivalent S sites. In the first S site, S(2) is bonded in a 4-coordinate geometry to four equivalent Nd(1) atoms. In the second S site, S(1) is bonded to five equivalent Nd(1) atoms to form a mixture of distorted corner and edge-sharing SNd5 trigonal bipyramids. In the third S site, S(3) is bonded in a 4-coordinate geometry to four equivalent Nd(1) atoms.
Nd4S7 crystallizes in the tetragonal P-42m space group. Nd(1) is bonded in a 8-coordinate geometry to one S(2), two equivalent S(3), and five equivalent S(1) atoms. The Nd(1)-S(2) bond length is 2.93 Å. Both Nd(1)-S(3) bond lengths are 2.95 Å. There are a spread of Nd(1)-S(1) bond distances ranging from 2.90-2.95 Å. There are three inequivalent S sites. In the first S site, S(2) is bonded in a 4-coordinate geometry to four equivalent Nd(1) atoms. In the second S site, S(1) is bonded to five equivalent Nd(1) atoms to form a mixture of distorted corner and edge-sharing SNd5 trigonal bipyramids. In the third S site, S(3) is bonded in a 4-coordinate geometry to four equivalent Nd(1) atoms.