Our collaboration with Johnson group looking at the size-dependent delocalization error in DFT is published in JCP May 20, 2015 This was paper expands on our previous work that showed that there were opposite trends in the amount of exact exchange needed for Koopmans' ionization potential and accurate excitation energies. Here... Read More Our collaboration with Johnson group looking at the size-dependent delocalization error in DFT is published in JCP