Gd3Co4Ge13 crystallizes in the cubic Pm-3n space group. Gd(1) is bonded in a 16-coordinate geometry to four equivalent Co(1) and twelve equivalent Ge(2) atoms. Co(1) is bonded in a 9-coordinate geometry to three equivalent Gd(1) and six equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 9-coordinate geometry to three equivalent Gd(1), two equivalent Co(1), one Ge(1), and three equivalent Ge(2) atoms. In the second Ge site, Ge(1) is bonded in a cuboctahedral geometry to twelve equivalent Ge(2) atoms.
Gd3Co4Ge13 crystallizes in the cubic Pm-3n space group. Gd(1) is bonded in a 16-coordinate geometry to four equivalent Co(1) and twelve equivalent Ge(2) atoms. All Gd(1)-Co(1) bond lengths are 3.10 Å. All Gd(1)-Ge(2) bond lengths are 3.09 Å. Co(1) is bonded in a 9-coordinate geometry to three equivalent Gd(1) and six equivalent Ge(2) atoms. All Co(1)-Ge(2) bond lengths are 2.41 Å. There are two inequivalent Ge sites. In the first Ge site, Ge(2) is bonded in a 9-coordinate geometry to three equivalent Gd(1), two equivalent Co(1), one Ge(1), and three equivalent Ge(2) atoms. The Ge(2)-Ge(1) bond length is 3.00 Å. There is one shorter (2.69 Å) and two longer (2.95 Å) Ge(2)-Ge(2) bond lengths. In the second Ge site, Ge(1) is bonded in a cuboctahedral geometry to twelve equivalent Ge(2) atoms.