NdCrGe3 crystallizes in the hexagonal P6_3/mmc space group. Nd(1) is bonded to twelve equivalent Ge(1) atoms to form distorted NdGe12 cuboctahedra that share corners with six equivalent Nd(1)Ge12 cuboctahedra, corners with six equivalent Cr(1)Ge6 octahedra, faces with eight equivalent Nd(1)Ge12 cuboctahedra, and faces with six equivalent Cr(1)Ge6 octahedra. The corner-sharing octahedral tilt angles are 27°. Cr(1) is bonded to six equivalent Ge(1) atoms to form CrGe6 octahedra that share corners with six equivalent Nd(1)Ge12 cuboctahedra, faces with six equivalent Nd(1)Ge12 cuboctahedra, and faces with two equivalent Cr(1)Ge6 octahedra. Ge(1) is bonded in a 8-coordinate geometry to four equivalent Nd(1), two equivalent Cr(1), and two equivalent Ge(1) atoms.
NdCrGe3 crystallizes in the hexagonal P6_3/mmc space group. Nd(1) is bonded to twelve equivalent Ge(1) atoms to form distorted NdGe12 cuboctahedra that share corners with six equivalent Nd(1)Ge12 cuboctahedra, corners with six equivalent Cr(1)Ge6 octahedra, faces with eight equivalent Nd(1)Ge12 cuboctahedra, and faces with six equivalent Cr(1)Ge6 octahedra. The corner-sharing octahedral tilt angles are 27°. There are six shorter (3.09 Å) and six longer (3.25 Å) Nd(1)-Ge(1) bond lengths. Cr(1) is bonded to six equivalent Ge(1) atoms to form CrGe6 octahedra that share corners with six equivalent Nd(1)Ge12 cuboctahedra, faces with six equivalent Nd(1)Ge12 cuboctahedra, and faces with two equivalent Cr(1)Ge6 octahedra. All Cr(1)-Ge(1) bond lengths are 2.51 Å. Ge(1) is bonded in a 8-coordinate geometry to four equivalent Nd(1), two equivalent Cr(1), and two equivalent Ge(1) atoms. Both Ge(1)-Ge(1) bond lengths are 2.61 Å.