Control of Chemical Reactions through Coherent Excitation of Eigenlevels: A Demonstration via Vibronic Coupling in SO2

Autor:	Jun Han, Bing Xue, Michael J. Wilhelm, Hai-Lung Dai
Rok vydání:	2021
Předmět:	Vibronic coupling Chemistry Oscillation Excited state Ionization Triatomic molecule Photodissociation Molecule Physical and Theoretical Chemistry Molecular physics Excitation
Zdroj:	The Journal of Physical Chemistry A. 125:9065-9070
ISSN:	1520-5215 1089-5639
DOI:	10.1021/acs.jpca.1c05778
Popis:	Through coherent excitation of a pair of vibronically coupled eigenlevels, an oscillation of 130 kcal/mol in energy excitation between electronic and vibrational motions (on a time scale of 10-8 s) is created for the triatomic molecule, sulfur dioxide (SO2). The reactivity of the molecule can be influenced depending upon whether the molecule is vibrationally or electronically excited with this substantial amount of energy. The effect of excitation on reactivity is demonstrated through SO2 photodissociation as a function of time following coherent excitation, monitored by multiphoton ionization of the SO product.
Databáze:	OpenAIRE
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