La2CuGe6 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 10-coordinate geometry to two equivalent Ge(2), two equivalent Ge(4), two equivalent Ge(5), and four equivalent Ge(3) atoms. In the second La site, La(2) is bonded in a 14-coordinate geometry to four equivalent Cu(1), two equivalent Ge(1), two equivalent Ge(3), two equivalent Ge(6), and four equivalent Ge(4) atoms. Cu(1) is bonded in a 9-coordinate geometry to four equivalent La(2), one Ge(4), two equivalent Ge(1), and two equivalent Ge(6) atoms. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent La(2), two equivalent Cu(1), one Ge(2), and four equivalent Ge(6) atoms. In the second Ge site, Ge(2) is bonded in a 7-coordinate geometry to two equivalent La(1), one Ge(1), and four equivalent Ge(5) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent La(2), four equivalent La(1), and two equivalent Ge(4) atoms. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to two equivalent La(1), four equivalent La(2), one Cu(1), and two equivalent Ge(3) atoms. In the fifth Ge site, Ge(5) is bonded in a 7-coordinate geometry to two equivalent La(1), one Ge(6), and four equivalent Ge(2) atoms. In the sixth Ge site, Ge(6) is bonded in a 9-coordinate geometry to two equivalent La(2), two equivalent Cu(1), one Ge(5), and four equivalent Ge(1) atoms.
La2CuGe6 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 10-coordinate geometry to two equivalent Ge(2), two equivalent Ge(4), two equivalent Ge(5), and four equivalent Ge(3) atoms. Both La(1)-Ge(2) bond lengths are 3.17 Å. Both La(1)-Ge(4) bond lengths are 3.36 Å. Both La(1)-Ge(5) bond lengths are 3.16 Å. All La(1)-Ge(3) bond lengths are 3.18 Å. In the second La site, La(2) is bonded in a 14-coordinate geometry to four equivalent Cu(1), two equivalent Ge(1), two equivalent Ge(3), two equivalent Ge(6), and four equivalent Ge(4) atoms. All La(2)-Cu(1) bond lengths are 3.23 Å. Both La(2)-Ge(1) bond lengths are 3.27 Å. Both La(2)-Ge(3) bond lengths are 3.37 Å. Both La(2)-Ge(6) bond lengths are 3.30 Å. All La(2)-Ge(4) bond lengths are 3.19 Å. Cu(1) is bonded in a 9-coordinate geometry to four equivalent La(2), one Ge(4), two equivalent Ge(1), and two equivalent Ge(6) atoms. The Cu(1)-Ge(4) bond length is 2.42 Å. Both Cu(1)-Ge(1) bond lengths are 2.45 Å. Both Cu(1)-Ge(6) bond lengths are 2.44 Å. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent La(2), two equivalent Cu(1), one Ge(2), and four equivalent Ge(6) atoms. The Ge(1)-Ge(2) bond length is 2.47 Å. All Ge(1)-Ge(6) bond lengths are 2.97 Å. In the second Ge site, Ge(2) is bonded in a 7-coordinate geometry to two equivalent La(1), one Ge(1), and four equivalent Ge(5) atoms. All Ge(2)-Ge(5) bond lengths are 2.97 Å. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent La(2), four equivalent La(1), and two equivalent Ge(4) atoms. Both Ge(3)-Ge(4) bond lengths are 2.55 Å. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to two equivalent La(1), four equivalent La(2), one Cu(1), and two equivalent Ge(3) atoms. In the fifth Ge site, Ge(5) is bonded in a 7-coordinate geometry to two equivalent La(1), one Ge(6), and four equivalent Ge(2) atoms. The Ge(5)-Ge(6) bond length is 2.49 Å. In the sixth Ge site, Ge(6) is bonded in a 9-coordinate geometry to two equivalent La(2), two equivalent Cu(1), one Ge(5), and four equivalent Ge(1) atoms.