Nd3In4Ge crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 10-coordinate geometry to eight equivalent In(1) and two equivalent Ge(1) atoms. In the second Nd site, Nd(2) is bonded in a 8-coordinate geometry to eight equivalent In(1) and two equivalent Ge(1) atoms. In(1) is bonded in a 10-coordinate geometry to two equivalent Nd(1), four equivalent Nd(2), and four equivalent In(1) atoms. Ge(1) is bonded to two equivalent Nd(1) and four equivalent Nd(2) atoms to form corner-sharing GeNd6 octahedra. The corner-sharing octahedral tilt angles range from 0-38°.
Nd3In4Ge crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 10-coordinate geometry to eight equivalent In(1) and two equivalent Ge(1) atoms. All Nd(1)-In(1) bond lengths are 3.44 Å. Both Nd(1)-Ge(1) bond lengths are 3.02 Å. In the second Nd site, Nd(2) is bonded in a 8-coordinate geometry to eight equivalent In(1) and two equivalent Ge(1) atoms. There are a spread of Nd(2)-In(1) bond distances ranging from 3.19-3.91 Å. Both Nd(2)-Ge(1) bond lengths are 3.22 Å. In(1) is bonded in a 10-coordinate geometry to two equivalent Nd(1), four equivalent Nd(2), and four equivalent In(1) atoms. There are a spread of In(1)-In(1) bond distances ranging from 3.00-3.43 Å. Ge(1) is bonded to two equivalent Nd(1) and four equivalent Nd(2) atoms to form corner-sharing GeNd6 octahedra. The corner-sharing octahedral tilt angles range from 0-38°.