Use of the Dual Potential to Rationalize the Occurrence of Some DNA Lesions (Pyrimidic Dimers)

Exploiting the locality of the chemical potential of an excited state when it is evaluated using the ground state Density Functional Theory (DFT), a new local descriptor for excited states has been proposed (J. Chem. Theory Comput.2009, 5, 2274). This index is based on the assumption that the relaxation of the electronic density toward that of the ground state drives the chemical reactivity of excited states. The sign of the descriptor …