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Direct Nonadiabatic Simulations of the Photoinduced Charge Transfer Dynamics
Published in American Chemical Society
2021
PMID: 33432807
Volume: 125
   
Issue: 2
Pages: 628 - 635
Abstract
We apply direct nonadiabatic dynamics simulations to investigate photoinduced charge transfer reactions. Our approach is based on the mixed quantum-classical fewest switches surface hopping (FSSH) method that treats the transferring electron through time-dependent density functional theory and the nuclei classically. The photoinduced excited state is modeled as a transferring single-electron that initially occupies the LUMO of the donor molecule/moiety. This single-particle electronic wave function is then propagated quantum mechanically by solving the time-dependent Schrödinger equation in the basis of the instantaneous molecular orbitals (MOs) of the entire system. The nonadiabatic transitions among electronic states are modeled using the FSSH approach within the classical-path approximation. We apply this approach to simulate the photoinduced charge transfer dynamics in a few well-characterized molecular systems. Our results are in excellent agreement with both the experimental measurements and high-level (yet expensive) theoretical results. © 2021 American Chemical Society.
About the journal
JournalThe Journal of Physical Chemistry A
PublisherAmerican Chemical Society
ISSN10895639
Open AccessNo