TcGa crystallizes in the hexagonal P-6m2 space group. Tc(1) is bonded to six equivalent Tc(1) and six equivalent Ga(1) atoms to form distorted TcGa6Tc6 cuboctahedra that share corners with eighteen equivalent Tc(1)Ga6Tc6 cuboctahedra, edges with six equivalent Tc(1)Ga6Tc6 cuboctahedra, edges with twelve equivalent Ga(1)Ga6Tc6 cuboctahedra, faces with eight equivalent Tc(1)Ga6Tc6 cuboctahedra, and faces with twelve equivalent Ga(1)Ga6Tc6 cuboctahedra. Ga(1) is bonded to six equivalent Tc(1) and six equivalent Ga(1) atoms to form distorted GaGa6Tc6 cuboctahedra that share corners with eighteen equivalent Ga(1)Ga6Tc6 cuboctahedra, edges with six equivalent Ga(1)Ga6Tc6 cuboctahedra, edges with twelve equivalent Tc(1)Ga6Tc6 cuboctahedra, faces with eight equivalent Ga(1)Ga6Tc6 cuboctahedra, and faces with twelve equivalent Tc(1)Ga6Tc6 cuboctahedra.
TcGa crystallizes in the hexagonal P-6m2 space group. Tc(1) is bonded to six equivalent Tc(1) and six equivalent Ga(1) atoms to form distorted TcGa6Tc6 cuboctahedra that share corners with eighteen equivalent Tc(1)Ga6Tc6 cuboctahedra, edges with six equivalent Tc(1)Ga6Tc6 cuboctahedra, edges with twelve equivalent Ga(1)Ga6Tc6 cuboctahedra, faces with eight equivalent Tc(1)Ga6Tc6 cuboctahedra, and faces with twelve equivalent Ga(1)Ga6Tc6 cuboctahedra. All Tc(1)-Tc(1) bond lengths are 2.86 Å. All Tc(1)-Ga(1) bond lengths are 2.62 Å. Ga(1) is bonded to six equivalent Tc(1) and six equivalent Ga(1) atoms to form distorted GaGa6Tc6 cuboctahedra that share corners with eighteen equivalent Ga(1)Ga6Tc6 cuboctahedra, edges with six equivalent Ga(1)Ga6Tc6 cuboctahedra, edges with twelve equivalent Tc(1)Ga6Tc6 cuboctahedra, faces with eight equivalent Ga(1)Ga6Tc6 cuboctahedra, and faces with twelve equivalent Tc(1)Ga6Tc6 cuboctahedra. All Ga(1)-Ga(1) bond lengths are 2.86 Å.