Li3Tc is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent Li(2) and four equivalent Tc(1) atoms to form a mixture of distorted edge, face, and corner-sharing LiLi4Tc4 tetrahedra. In the second Li site, Li(2) is bonded in a 14-coordinate geometry to eight equivalent Li(1) and six equivalent Tc(1) atoms. Tc(1) is bonded in a distorted body-centered cubic geometry to six equivalent Li(2) and eight equivalent Li(1) atoms.
Li3Tc is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent Li(2) and four equivalent Tc(1) atoms to form a mixture of distorted edge, face, and corner-sharing LiLi4Tc4 tetrahedra. All Li(1)-Li(2) bond lengths are 2.69 Å. All Li(1)-Tc(1) bond lengths are 2.69 Å. In the second Li site, Li(2) is bonded in a 14-coordinate geometry to eight equivalent Li(1) and six equivalent Tc(1) atoms. All Li(2)-Tc(1) bond lengths are 3.10 Å. Tc(1) is bonded in a distorted body-centered cubic geometry to six equivalent Li(2) and eight equivalent Li(1) atoms.