Dy2Co3Ge5 crystallizes in the monoclinic C2/c space group. Dy(1) is bonded in a 1-coordinate geometry to two equivalent Ge(1), two equivalent Ge(4), and four equivalent Ge(3) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one Ge(2), one Ge(4), and four equivalent Ge(3) atoms. In the second Co site, Co(2) is bonded in a 5-coordinate geometry to one Ge(2), one Ge(3), one Ge(4), and two equivalent Ge(1) atoms. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to four equivalent Dy(1) and four equivalent Co(2) atoms. In the second Ge site, Ge(2) is bonded in a 2-coordinate geometry to one Co(1), two equivalent Co(2), two equivalent Ge(3), and two equivalent Ge(4) atoms. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to four equivalent Dy(1), one Co(2), two equivalent Co(1), one Ge(2), and one Ge(4) atom. In the fourth Ge site, Ge(4) is bonded in a 11-coordinate geometry to four equivalent Dy(1), one Co(1), two equivalent Co(2), two equivalent Ge(2), and two equivalent Ge(3) atoms.
Dy2Co3Ge5 crystallizes in the monoclinic C2/c space group. Dy(1) is bonded in a 1-coordinate geometry to two equivalent Ge(1), two equivalent Ge(4), and four equivalent Ge(3) atoms. There is one shorter (3.02 Å) and one longer (3.19 Å) Dy(1)-Ge(1) bond length. There is one shorter (3.02 Å) and one longer (3.18 Å) Dy(1)-Ge(4) bond length. There are a spread of Dy(1)-Ge(3) bond distances ranging from 2.87-3.21 Å. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 6-coordinate geometry to one Ge(2), one Ge(4), and four equivalent Ge(3) atoms. The Co(1)-Ge(2) bond length is 2.76 Å. The Co(1)-Ge(4) bond length is 2.49 Å. There are two shorter (2.39 Å) and two longer (2.43 Å) Co(1)-Ge(3) bond lengths. In the second Co site, Co(2) is bonded in a 5-coordinate geometry to one Ge(2), one Ge(3), one Ge(4), and two equivalent Ge(1) atoms. The Co(2)-Ge(2) bond length is 2.39 Å. The Co(2)-Ge(3) bond length is 2.29 Å. The Co(2)-Ge(4) bond length is 2.31 Å. There is one shorter (2.36 Å) and one longer (2.39 Å) Co(2)-Ge(1) bond length. There are four inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to four equivalent Dy(1) and four equivalent Co(2) atoms. In the second Ge site, Ge(2) is bonded in a 2-coordinate geometry to one Co(1), two equivalent Co(2), two equivalent Ge(3), and two equivalent Ge(4) atoms. Both Ge(2)-Ge(3) bond lengths are 2.64 Å. Both Ge(2)-Ge(4) bond lengths are 2.86 Å. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to four equivalent Dy(1), one Co(2), two equivalent Co(1), one Ge(2), and one Ge(4) atom. The Ge(3)-Ge(4) bond length is 2.63 Å. In the fourth Ge site, Ge(4) is bonded in a 11-coordinate geometry to four equivalent Dy(1), one Co(1), two equivalent Co(2), two equivalent Ge(2), and two equivalent Ge(3) atoms.