PrMnCoGe2 crystallizes in the tetragonal I-4m2 space group. Pr(1) is bonded in a 16-coordinate geometry to four equivalent Mn(1), four equivalent Co(1), and eight equivalent Ge(1) atoms. Mn(1) is bonded to four equivalent Pr(1), four equivalent Co(1), and four equivalent Ge(1) atoms to form distorted MnPr4Co4Ge4 tetrahedra that share corners with four equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, corners with twelve equivalent Mn(1)Pr4Co4Ge4 tetrahedra, edges with two equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, faces with four equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, and faces with four equivalent Mn(1)Pr4Co4Ge4 tetrahedra. Co(1) is bonded to four equivalent Pr(1), four equivalent Mn(1), and four equivalent Ge(1) atoms to form distorted CoPr4Mn4Ge4 cuboctahedra that share corners with twelve equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, corners with four equivalent Mn(1)Pr4Co4Ge4 tetrahedra, edges with two equivalent Mn(1)Pr4Co4Ge4 tetrahedra, faces with four equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, and faces with four equivalent Mn(1)Pr4Co4Ge4 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Mn(1), two equivalent Co(1), and one Ge(1) atom.
PrMnCoGe2 crystallizes in the tetragonal I-4m2 space group. Pr(1) is bonded in a 16-coordinate geometry to four equivalent Mn(1), four equivalent Co(1), and eight equivalent Ge(1) atoms. All Pr(1)-Mn(1) bond lengths are 3.34 Å. All Pr(1)-Co(1) bond lengths are 3.34 Å. All Pr(1)-Ge(1) bond lengths are 3.17 Å. Mn(1) is bonded to four equivalent Pr(1), four equivalent Co(1), and four equivalent Ge(1) atoms to form distorted MnPr4Co4Ge4 tetrahedra that share corners with four equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, corners with twelve equivalent Mn(1)Pr4Co4Ge4 tetrahedra, edges with two equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, faces with four equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, and faces with four equivalent Mn(1)Pr4Co4Ge4 tetrahedra. All Mn(1)-Co(1) bond lengths are 2.88 Å. All Mn(1)-Ge(1) bond lengths are 2.43 Å. Co(1) is bonded to four equivalent Pr(1), four equivalent Mn(1), and four equivalent Ge(1) atoms to form distorted CoPr4Mn4Ge4 cuboctahedra that share corners with twelve equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, corners with four equivalent Mn(1)Pr4Co4Ge4 tetrahedra, edges with two equivalent Mn(1)Pr4Co4Ge4 tetrahedra, faces with four equivalent Co(1)Pr4Mn4Ge4 cuboctahedra, and faces with four equivalent Mn(1)Pr4Co4Ge4 tetrahedra. All Co(1)-Ge(1) bond lengths are 2.43 Å. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Mn(1), two equivalent Co(1), and one Ge(1) atom. The Ge(1)-Ge(1) bond length is 2.65 Å.