Dy3Ge5 crystallizes in the monoclinic C2 space group. There are four inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 8-coordinate geometry to two equivalent Ge(1), two equivalent Ge(3), two equivalent Ge(5), and two equivalent Ge(6) atoms. In the second Dy site, Dy(2) is bonded in a 8-coordinate geometry to two equivalent Ge(2), two equivalent Ge(4), two equivalent Ge(5), and two equivalent Ge(6) atoms. In the third Dy site, Dy(3) is bonded in a 10-coordinate geometry to one Ge(1), one Ge(2), one Ge(4), one Ge(6), three equivalent Ge(3), and three equivalent Ge(5) atoms. In the fourth Dy site, Dy(4) is bonded in a 10-coordinate geometry to one Ge(1), one Ge(2), one Ge(3), one Ge(5), three equivalent Ge(4), and three equivalent Ge(6) atoms. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Dy(1), two equivalent Dy(3), two equivalent Dy(4), and two equivalent Ge(5) atoms. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent Dy(2), two equivalent Dy(3), two equivalent Dy(4), and two equivalent Ge(6) atoms. In the third Ge site, Ge(3) is bonded in a 6-coordinate geometry to one Dy(1), one Dy(4), three equivalent Dy(3), one Ge(5), and one Ge(6) atom. In the fourth Ge site, Ge(4) is bonded in a 4-coordinate geometry to one Dy(2), one Dy(3), three equivalent Dy(4), one Ge(5), and one Ge(6) atom. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Dy(1), one Dy(2), one Dy(4), three equivalent Dy(3), one Ge(1), one Ge(3), and one Ge(4) atom. In the sixth Ge site, Ge(6) is bonded in a 9-coordinate geometry to one Dy(1), one Dy(2), one Dy(3), three equivalent Dy(4), one Ge(2), one Ge(3), and one Ge(4) atom.
Dy3Ge5 crystallizes in the monoclinic C2 space group. There are four inequivalent Dy sites. In the first Dy site, Dy(1) is bonded in a 8-coordinate geometry to two equivalent Ge(1), two equivalent Ge(3), two equivalent Ge(5), and two equivalent Ge(6) atoms. Both Dy(1)-Ge(1) bond lengths are 2.97 Å. Both Dy(1)-Ge(3) bond lengths are 2.99 Å. Both Dy(1)-Ge(5) bond lengths are 3.07 Å. Both Dy(1)-Ge(6) bond lengths are 3.05 Å. In the second Dy site, Dy(2) is bonded in a 8-coordinate geometry to two equivalent Ge(2), two equivalent Ge(4), two equivalent Ge(5), and two equivalent Ge(6) atoms. Both Dy(2)-Ge(2) bond lengths are 2.97 Å. Both Dy(2)-Ge(4) bond lengths are 3.00 Å. Both Dy(2)-Ge(5) bond lengths are 3.05 Å. Both Dy(2)-Ge(6) bond lengths are 3.06 Å. In the third Dy site, Dy(3) is bonded in a 10-coordinate geometry to one Ge(1), one Ge(2), one Ge(4), one Ge(6), three equivalent Ge(3), and three equivalent Ge(5) atoms. The Dy(3)-Ge(1) bond length is 3.24 Å. The Dy(3)-Ge(2) bond length is 3.02 Å. The Dy(3)-Ge(4) bond length is 2.94 Å. The Dy(3)-Ge(6) bond length is 3.04 Å. There are a spread of Dy(3)-Ge(3) bond distances ranging from 2.94-3.46 Å. There are a spread of Dy(3)-Ge(5) bond distances ranging from 2.99-3.14 Å. In the fourth Dy site, Dy(4) is bonded in a 10-coordinate geometry to one Ge(1), one Ge(2), one Ge(3), one Ge(5), three equivalent Ge(4), and three equivalent Ge(6) atoms. The Dy(4)-Ge(1) bond length is 3.02 Å. The Dy(4)-Ge(2) bond length is 3.22 Å. The Dy(4)-Ge(3) bond length is 2.93 Å. The Dy(4)-Ge(5) bond length is 3.04 Å. There are a spread of Dy(4)-Ge(4) bond distances ranging from 2.94-3.44 Å. There is one shorter (3.00 Å) and two longer (3.14 Å) Dy(4)-Ge(6) bond lengths. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to two equivalent Dy(1), two equivalent Dy(3), two equivalent Dy(4), and two equivalent Ge(5) atoms. Both Ge(1)-Ge(5) bond lengths are 2.55 Å. In the second Ge site, Ge(2) is bonded in a 8-coordinate geometry to two equivalent Dy(2), two equivalent Dy(3), two equivalent Dy(4), and two equivalent Ge(6) atoms. Both Ge(2)-Ge(6) bond lengths are 2.55 Å. In the third Ge site, Ge(3) is bonded in a 6-coordinate geometry to one Dy(1), one Dy(4), three equivalent Dy(3), one Ge(5), and one Ge(6) atom. The Ge(3)-Ge(5) bond length is 2.54 Å. The Ge(3)-Ge(6) bond length is 2.63 Å. In the fourth Ge site, Ge(4) is bonded in a 4-coordinate geometry to one Dy(2), one Dy(3), three equivalent Dy(4), one Ge(5), and one Ge(6) atom. The Ge(4)-Ge(5) bond length is 2.63 Å. The Ge(4)-Ge(6) bond length is 2.54 Å. In the fifth Ge site, Ge(5) is bonded in a 9-coordinate geometry to one Dy(1), one Dy(2), one Dy(4), three equivalent Dy(3), one Ge(1), one Ge(3), and one Ge(4) atom. In the sixth Ge site, Ge(6) is bonded in a 9-coordinate geometry to one Dy(1), one Dy(2), one Dy(3), three equivalent Dy(4), one Ge(2), one Ge(3), and one Ge(4) atom.