Tl3Ge is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a distorted body-centered cubic geometry to four equivalent Tl(2) and four equivalent Ge(1) atoms. In the second Tl site, Tl(2) is bonded in a body-centered cubic geometry to eight equivalent Tl(1) atoms. Ge(1) is bonded in a body-centered cubic geometry to eight equivalent Tl(1) atoms.
Tl3Ge is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a distorted body-centered cubic geometry to four equivalent Tl(2) and four equivalent Ge(1) atoms. All Tl(1)-Tl(2) bond lengths are 3.32 Å. All Tl(1)-Ge(1) bond lengths are 3.32 Å. In the second Tl site, Tl(2) is bonded in a body-centered cubic geometry to eight equivalent Tl(1) atoms. Ge(1) is bonded in a body-centered cubic geometry to eight equivalent Tl(1) atoms.