Mn2Co3Ge crystallizes in the hexagonal P6_3/mmc space group. Mn(1) is bonded in a 16-coordinate geometry to four equivalent Mn(1), nine equivalent Co(1), and three equivalent Ge(1) atoms. Co(1) is bonded to six equivalent Mn(1), four equivalent Co(1), and two equivalent Ge(1) atoms to form distorted CoMn6Co4Ge2 cuboctahedra that share corners with four equivalent Ge(1)Mn6Co6 cuboctahedra, corners with fourteen equivalent Co(1)Mn6Co4Ge2 cuboctahedra, edges with six equivalent Co(1)Mn6Co4Ge2 cuboctahedra, faces with six equivalent Ge(1)Mn6Co6 cuboctahedra, and faces with twelve equivalent Co(1)Mn6Co4Ge2 cuboctahedra. Ge(1) is bonded to six equivalent Mn(1) and six equivalent Co(1) atoms to form GeMn6Co6 cuboctahedra that share corners with twelve equivalent Co(1)Mn6Co4Ge2 cuboctahedra, edges with six equivalent Ge(1)Mn6Co6 cuboctahedra, faces with two equivalent Ge(1)Mn6Co6 cuboctahedra, and faces with eighteen equivalent Co(1)Mn6Co4Ge2 cuboctahedra.
Mn2Co3Ge crystallizes in the hexagonal P6_3/mmc space group. Mn(1) is bonded in a 16-coordinate geometry to four equivalent Mn(1), nine equivalent Co(1), and three equivalent Ge(1) atoms. There is one shorter (2.82 Å) and three longer (2.94 Å) Mn(1)-Mn(1) bond lengths. There are three shorter (2.74 Å) and six longer (2.78 Å) Mn(1)-Co(1) bond lengths. All Mn(1)-Ge(1) bond lengths are 2.81 Å. Co(1) is bonded to six equivalent Mn(1), four equivalent Co(1), and two equivalent Ge(1) atoms to form distorted CoMn6Co4Ge2 cuboctahedra that share corners with four equivalent Ge(1)Mn6Co6 cuboctahedra, corners with fourteen equivalent Co(1)Mn6Co4Ge2 cuboctahedra, edges with six equivalent Co(1)Mn6Co4Ge2 cuboctahedra, faces with six equivalent Ge(1)Mn6Co6 cuboctahedra, and faces with twelve equivalent Co(1)Mn6Co4Ge2 cuboctahedra. There are two shorter (2.30 Å) and two longer (2.50 Å) Co(1)-Co(1) bond lengths. Both Co(1)-Ge(1) bond lengths are 2.39 Å. Ge(1) is bonded to six equivalent Mn(1) and six equivalent Co(1) atoms to form GeMn6Co6 cuboctahedra that share corners with twelve equivalent Co(1)Mn6Co4Ge2 cuboctahedra, edges with six equivalent Ge(1)Mn6Co6 cuboctahedra, faces with two equivalent Ge(1)Mn6Co6 cuboctahedra, and faces with eighteen equivalent Co(1)Mn6Co4Ge2 cuboctahedra.