Natacha Gillet, Laura Berstis, Xiaojing Wu, Fruzsina Gajdos, Alexander Heck, Aurélien de la Lande, Jochen Blumberger and Marcus Elstner "Electronic Coupling Calculations for Bridge-Mediated Charge Transfer Using Constrained Density Functional Theory (CDFT) and Effective Hamiltonian Approaches at the Density Functional Theory (DFT) and Fragment-Orbital Density Functional Tight Binding (FODFTB ...