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PCET-QD-JPCA.pdf (5.17 MB)

Quasi Diabatic Propagation Scheme for Direct Simulation of Proton-Coupled Electron Transfer Reaction

preprint
submitted on 03.01.2019, 22:20 and posted on 04.01.2019, 20:07 by Farnaz A. Shakib, Pengfei Huo
We apply a recently-developed quasi-diabatic (QD) propagation scheme to simulate proton-coupled electron transfer (PCET) reactions. This scheme enables a direct interface between an accurate diabatic dynamics approach and the adiabatic vibronic states. It explicitly avoids theoretical efforts to pre-construct diabatic states for the transferring electron and proton or reformulate diabatic dynamics methods to the adiabatic representation, both of which are non-trivial tasks. Using partial linearized path-integral approach and symmetrical quasi-classical approach as the diabatic dynamics methods, we demonstrate that the QD propagation scheme provides accurate vibronic dynamics of PCET reactions and reliably predict the correct reaction mechanism without any a priori assumptions. This work demonstrates the possibility to directly simulate challenging PCET reactions by using accurate diabatic dynamics approaches and adiabatic vibronic information.

Funding

CHE-1845747

History

Email Address of Submitting Author

pengfei.huo@rochester.edu

Institution

University of Rochester

Country

United States

ORCID For Submitting Author

0000-0002-8639-9299

Declaration of Conflict of Interest

None

Exports