Tc is alpha La structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded to six equivalent Tc(1) and six equivalent Tc(2) atoms to form a mixture of edge, face, and corner-sharing TcTc12 cuboctahedra. In the second Tc site, Tc(2) is bonded to six equivalent Tc(1) and six equivalent Tc(2) atoms to form a mixture of edge, face, and corner-sharing TcTc12 cuboctahedra.
Tc is alpha La structured and crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded to six equivalent Tc(1) and six equivalent Tc(2) atoms to form a mixture of edge, face, and corner-sharing TcTc12 cuboctahedra. All Tc(1)-Tc(1) bond lengths are 2.74 Å. All Tc(1)-Tc(2) bond lengths are 2.70 Å. In the second Tc site, Tc(2) is bonded to six equivalent Tc(1) and six equivalent Tc(2) atoms to form a mixture of edge, face, and corner-sharing TcTc12 cuboctahedra. All Tc(2)-Tc(2) bond lengths are 2.74 Å.