Dy3CuGeS7 crystallizes in the hexagonal P6_3 space group. Dy(1) is bonded in a 9-coordinate geometry to one Cu(1), one S(3), three equivalent S(1), and four equivalent S(2) atoms. Cu(1) is bonded in a trigonal planar geometry to three equivalent Dy(1) and three equivalent S(2) atoms. Ge(1) is bonded in a tetrahedral geometry to one S(3) and three equivalent S(1) atoms. There are three inequivalent S sites. In the first S site, S(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Dy(1) and one Ge(1) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to four equivalent Dy(1) and one Cu(1) atom. In the third S site, S(3) is bonded in a tetrahedral geometry to three equivalent Dy(1) and one Ge(1) atom.
Dy3CuGeS7 crystallizes in the hexagonal P6_3 space group. Dy(1) is bonded in a 9-coordinate geometry to one Cu(1), one S(3), three equivalent S(1), and four equivalent S(2) atoms. The Dy(1)-Cu(1) bond length is 3.11 Å. The Dy(1)-S(3) bond length is 2.94 Å. There are a spread of Dy(1)-S(1) bond distances ranging from 2.81-3.00 Å. There are a spread of Dy(1)-S(2) bond distances ranging from 2.75-3.24 Å. Cu(1) is bonded in a trigonal planar geometry to three equivalent Dy(1) and three equivalent S(2) atoms. All Cu(1)-S(2) bond lengths are 2.24 Å. Ge(1) is bonded in a tetrahedral geometry to one S(3) and three equivalent S(1) atoms. The Ge(1)-S(3) bond length is 2.20 Å. All Ge(1)-S(1) bond lengths are 2.24 Å. There are three inequivalent S sites. In the first S site, S(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Dy(1) and one Ge(1) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to four equivalent Dy(1) and one Cu(1) atom. In the third S site, S(3) is bonded in a tetrahedral geometry to three equivalent Dy(1) and one Ge(1) atom.