PrCuGe2 crystallizes in the orthorhombic Cmcm space group. Pr(1) is bonded in a 14-coordinate geometry to four equivalent Cu(1), four equivalent Ge(1), and six equivalent Ge(2) atoms. Cu(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), one 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 8-coordinate geometry to four equivalent Pr(1) and four equivalent Cu(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Cu(1), and two equivalent Ge(2) atoms.
PrCuGe2 crystallizes in the orthorhombic Cmcm space group. Pr(1) is bonded in a 14-coordinate geometry to four equivalent Cu(1), four equivalent Ge(1), and six equivalent Ge(2) atoms. All Pr(1)-Cu(1) bond lengths are 3.25 Å. There are two shorter (3.26 Å) and two longer (3.32 Å) Pr(1)-Ge(1) bond lengths. There are four shorter (3.21 Å) and two longer (3.28 Å) Pr(1)-Ge(2) bond lengths. Cu(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), one Ge(2), and four equivalent Ge(1) atoms. The Cu(1)-Ge(2) bond length is 2.37 Å. There are two shorter (2.47 Å) and two longer (2.49 Å) Cu(1)-Ge(1) bond lengths. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to four equivalent Pr(1) and four equivalent Cu(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to six equivalent Pr(1), one Cu(1), and two equivalent Ge(2) atoms. Both Ge(2)-Ge(2) bond lengths are 2.50 Å.