Pr2(CuGe)3 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 14-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), four equivalent Cu(3), two equivalent Ge(2), and four equivalent Ge(3) atoms. In the second Pr site, Pr(2) is bonded in a 14-coordinate geometry to two equivalent Cu(2), four equivalent Cu(1), two equivalent Ge(2), two equivalent Ge(3), and four equivalent Ge(1) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Ge(1), and two equivalent Ge(3) atoms. In the second Cu site, Cu(2) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Cu(3), two equivalent Ge(1), and four equivalent Ge(2) atoms. In the third Cu site, Cu(3) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Cu(2), one Ge(3), and two equivalent Ge(2) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent Pr(2), one Cu(1), two equivalent Cu(2), and two equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Cu(3), four equivalent Cu(2), and two equivalent Ge(1) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Pr(2), four equivalent Pr(1), one Cu(3), and two equivalent Cu(1) atoms.
Pr2(CuGe)3 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 14-coordinate geometry to two equivalent Cu(1), two equivalent Cu(2), four equivalent Cu(3), two equivalent Ge(2), and four equivalent Ge(3) atoms. Both Pr(1)-Cu(1) bond lengths are 3.17 Å. Both Pr(1)-Cu(2) bond lengths are 3.32 Å. All Pr(1)-Cu(3) bond lengths are 3.24 Å. Both Pr(1)-Ge(2) bond lengths are 3.21 Å. All Pr(1)-Ge(3) bond lengths are 3.25 Å. In the second Pr site, Pr(2) is bonded in a 14-coordinate geometry to two equivalent Cu(2), four equivalent Cu(1), two equivalent Ge(2), two equivalent Ge(3), and four equivalent Ge(1) atoms. Both Pr(2)-Cu(2) bond lengths are 3.21 Å. All Pr(2)-Cu(1) bond lengths are 3.29 Å. Both Pr(2)-Ge(2) bond lengths are 3.32 Å. Both Pr(2)-Ge(3) bond lengths are 3.25 Å. All Pr(2)-Ge(1) bond lengths are 3.20 Å. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 9-coordinate geometry to two equivalent Pr(1), four equivalent Pr(2), one Ge(1), and two equivalent Ge(3) atoms. The Cu(1)-Ge(1) bond length is 2.39 Å. Both Cu(1)-Ge(3) bond lengths are 2.39 Å. In the second Cu site, Cu(2) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Cu(3), two equivalent Ge(1), and four equivalent Ge(2) atoms. Both Cu(2)-Cu(3) bond lengths are 2.54 Å. Both Cu(2)-Ge(1) bond lengths are 2.49 Å. All Cu(2)-Ge(2) bond lengths are 3.02 Å. In the third Cu site, Cu(3) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Cu(2), one Ge(3), and two equivalent Ge(2) atoms. The Cu(3)-Ge(3) bond length is 2.42 Å. Both Cu(3)-Ge(2) bond lengths are 2.42 Å. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to four equivalent Pr(2), one Cu(1), two equivalent Cu(2), and two equivalent Ge(2) atoms. Both Ge(1)-Ge(2) bond lengths are 2.62 Å. In the second Ge site, Ge(2) is bonded in a 12-coordinate geometry to two equivalent Pr(1), two equivalent Pr(2), two equivalent Cu(3), four equivalent Cu(2), and two equivalent Ge(1) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Pr(2), four equivalent Pr(1), one Cu(3), and two equivalent Cu(1) atoms.