Tc2AlPb crystallizes in the cubic F-43m space group. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded to four equivalent Tc(2) and four equivalent Pb(1) atoms to form distorted edge-sharing TcTc4Pb4 tetrahedra. In the second Tc site, Tc(2) is bonded in a 14-coordinate geometry to four equivalent Tc(1), four equivalent Al(1), and six equivalent Pb(1) atoms. Al(1) is bonded in a distorted body-centered cubic geometry to four equivalent Tc(2) and four equivalent Pb(1) atoms. Pb(1) is bonded in a distorted body-centered cubic geometry to four equivalent Tc(1), six equivalent Tc(2), and four equivalent Al(1) atoms.
Tc2AlPb crystallizes in the cubic F-43m space group. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded to four equivalent Tc(2) and four equivalent Pb(1) atoms to form distorted edge-sharing TcTc4Pb4 tetrahedra. All Tc(1)-Tc(2) bond lengths are 2.82 Å. All Tc(1)-Pb(1) bond lengths are 2.82 Å. In the second Tc site, Tc(2) is bonded in a 14-coordinate geometry to four equivalent Tc(1), four equivalent Al(1), and six equivalent Pb(1) atoms. All Tc(2)-Al(1) bond lengths are 2.82 Å. All Tc(2)-Pb(1) bond lengths are 3.25 Å. Al(1) is bonded in a distorted body-centered cubic geometry to four equivalent Tc(2) and four equivalent Pb(1) atoms. All Al(1)-Pb(1) bond lengths are 2.82 Å. Pb(1) is bonded in a distorted body-centered cubic geometry to four equivalent Tc(1), six equivalent Tc(2), and four equivalent Al(1) atoms.