Effect of solvent motions on the dynamics of the Diels–Alder reaction

Literature Information

Publication Date 2021-12-13
DOI 10.1039/D1CP05272A
Impact Factor 3.676
Authors

Xiaoyong Zhang, Jeremy N. Harvey


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Abstract

How solvent motions affect the dynamics of chemical reactions in which the solute undergoes a substantial shape change is a fundamental but elusive issue. This work utilizes reactive simulation and Grote-Hynes theory to explore the effect of solvent motions on the dynamics of the Diels–Alder reaction (in the reverse direction, this reaction involves very substantial solute expansion) in aprotic solvents. The results reveal that the solvent environment is not sufficiently constraining to influence transition state passage dynamics, with the calculated transmission coefficients being close to unity. Even when solvent motions are suppressed or artificially slowed down, the solvent only affects the reaction dynamics in the transition state region to a very small extent. The only notable effect of solvent occurs far from the transition state region and corresponds to caging of the reactants within the reactant well.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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