A catastrophe theory-based model for optimal control of chemical reactions by means of oriented electric fields
THEORETICAL CHEMISTRY ACCOUNTS(2023)
摘要
The effect of oriented external electric fields (OEEF) on chemical reactivity has been studied theoretically and computationally in the last decades. A central goal in this research area is to predict the orientation and the smallest amplitude electric field that renders a barrierless chemical process with the smallest possible strength. Recently, a model to find the optimal electric field has been proposed and described (Bofill JM et al., J. Chem. Theory Comput. 18:935, 2022). We here proof that this model is based on catastrophe and optimum control theories. Based on both theories a technical treatment of the model is given and applied to a two-dimensional generic example that provides insight into its nature and capability. Finally, the model is applied to determine the optimal OEEF for the trans-to-cis isomerization of a [3]cumulene derivative.
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关键词
Effective potential energy surface,Oriented external electric field,Newton trajectory,Barrier breakdown,Force-displaced stationary points,Reaction path
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