A 21st Century View of Allowed and Forbidden Electrocyclic Reactions

Q Zhou, G Kukier, I Gordiy, R Hoffmann… - The Journal of …, 2023 - ACS Publications
In 1965, Woodward and Hoffmann proposed a theory to predict the stereochemistry of
electrocyclic reactions, which, after expansion and generalization, became known as the …

Lagrangian descriptors and the action integral of classical mechanics

VJ García-Garrido, S Wiggins - Physica D: Nonlinear Phenomena, 2022 - Elsevier
In this paper we bring together the method of Lagrangian descriptors and the principle of
least action, or more precisely, of stationary action, in both deterministic and stochastic …

Detecting reactive islands in a system-bath model of isomerization

S Naik, S Wiggins - Physical Chemistry Chemical Physics, 2020 - pubs.rsc.org
In this article, we study the conformational isomerization in a solvent using a system-bath
model where the phase space structures relevant for the reaction dynamics are revealed …

Revealing roaming on the double morse potential energy surface with lagrangian descriptors

FG Montoya, S Wiggins - Journal of Physics A: Mathematical and …, 2020 - iopscience.iop.org
In this paper, we analyse the phase space structure of the roaming dynamics in a 2 degree
of freedom potential energy surface consisting of two identical planar Morse potentials …

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

X Zhang, PL Lefebvre, JN Harvey - Physical Chemistry Chemical …, 2022 - pubs.rsc.org
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 …

Locating Transition Zone in Phase Space

YK Lei, Z Zhang, X Han, YI Yang… - Journal of Chemical …, 2022 - ACS Publications
Understanding the reaction mechanism is required for better control of chemical reactions
and is usually achieved by locating transition states (TSs) along a proper one-dimensional …

Hamiltonian pitchfork bifurcation in transition across index-1 saddles

W Lyu, S Naik, S Wiggins - … in Nonlinear Science and Numerical Simulation, 2021 - Elsevier
We study the effect of changes in the parameters of a two dimensional potential energy
surface on the phase space structures relevant for chemical reaction dynamics. The …