Li4Nd3Ge4 crystallizes in the orthorhombic Immm space group. Li(1) is bonded to three equivalent Nd(2), one Ge(1), and three equivalent Ge(2) atoms to form distorted LiNd3Ge4 tetrahedra that share  a cornercorner with one Nd(1)Ge6 octahedra, corners with five equivalent Li(1)Nd3Ge4 tetrahedra, edges with two equivalent Nd(1)Ge6 octahedra, edges with six equivalent Li(1)Nd3Ge4 tetrahedra, and faces with four equivalent Li(1)Nd3Ge4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to two equivalent Ge(2) and four equivalent Ge(1) atoms to form NdGe6 octahedra that share corners with four equivalent Li(1)Nd3Ge4 tetrahedra, edges with two equivalent Nd(1)Ge6 octahedra, and edges with eight equivalent Li(1)Nd3Ge4 tetrahedra. In the second Nd site, Nd(2) is bonded in a 12-coordinate geometry to six equivalent Li(1), two equivalent Ge(2), and four equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Li(1), two equivalent Nd(1), four equivalent Nd(2), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Li(1), one Nd(1), and two equivalent Nd(2) atoms.
Li4Nd3Ge4 crystallizes in the orthorhombic Immm space group. Li(1) is bonded to three equivalent Nd(2), one Ge(1), and three equivalent Ge(2) atoms to form distorted LiNd3Ge4 tetrahedra that share  a cornercorner with one Nd(1)Ge6 octahedra, corners with five equivalent Li(1)Nd3Ge4 tetrahedra, edges with two equivalent Nd(1)Ge6 octahedra, edges with six equivalent Li(1)Nd3Ge4 tetrahedra, and faces with four equivalent Li(1)Nd3Ge4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. There are two shorter (3.12 Å) and one longer (3.20 Å) Li(1)-Nd(2) bond length. The Li(1)-Ge(1) bond length is 2.67 Å. There are two shorter (2.65 Å) and one longer (2.71 Å) Li(1)-Ge(2) bond length. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded to two equivalent Ge(2) and four equivalent Ge(1) atoms to form NdGe6 octahedra that share corners with four equivalent Li(1)Nd3Ge4 tetrahedra, edges with two equivalent Nd(1)Ge6 octahedra, and edges with eight equivalent Li(1)Nd3Ge4 tetrahedra. Both Nd(1)-Ge(2) bond lengths are 3.15 Å. All Nd(1)-Ge(1) bond lengths are 3.10 Å. In the second Nd site, Nd(2) is bonded in a 12-coordinate geometry to six equivalent Li(1), two equivalent Ge(2), and four equivalent Ge(1) atoms. Both Nd(2)-Ge(2) bond lengths are 3.20 Å. All Nd(2)-Ge(1) bond lengths are 3.21 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Li(1), two equivalent Nd(1), four equivalent Nd(2), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.54 Å. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Li(1), one Nd(1), and two equivalent Nd(2) atoms.