The Vibrational Predissociation And Intramolecular Vibrational Redistribution Of The à State Of The C3ar Van Der Waals Complex

Hsu, Yen-Chu

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https://hdl.handle.net/2142/116972 Copy

Description

Title

The Vibrational Predissociation And Intramolecular Vibrational Redistribution Of The à State Of The C3ar Van Der Waals Complex

Author(s)

Hsu, Yen-Chu

Contributor(s)

Hsiao, Sheng-Chang

Issue Date

2022-06-22

Keyword(s)

Mini-symposium: Spectroscopy meets Chemical Dynamics

Abstract

The vibrational predissociation (VP) products of eighteen rovibrational levels of the \~{A} state of the C$_{3}$Ar complex have been studied.\footnote{Y.-J. Wang and Y.-C. Hsu, J. Chem. Phys. 153, 124303(2020).}$^{,}$\footnote{S.-C. Hsiao and Y.-C. Hsu, to be published.} These complex levels are associated with the 0 2$^{-}$ 0, 0 2$^{+}$ 0, 0 4$^{-}$ 0, 0 8$^{-}$ 0, 0 4$^{+}$ 0, and 0 0 2 vibrational levels of C$_{3}$(\~{A}). The distributions of the fragment branching ratios versus the square root of the excess energies (the sum of the translational and rotational energy of the VP product) obtained from these complex levels do not necessarily follow the momentum gap law \footnote{G.E. Ewing, J. Chem. Phys. 71, 3143(1979).} or energy gap law. \footnote{J.A. Beswick and J. Jortner, J. Chem. Phys. 69, 512(1979).} Effects such as spectroscopic perturbation,\footnote{E.J. Bohac, M.D. Marshall, and R.E. Miller, J. Chem. Phys. 98,6642(1993) and references therein.} energy gap,$^{c,d}$ angular momentum,$^{a}$ threshold predissociation,$^{a}$ and intramolecular vibrational redistribution\footnote{A. Buchachenko, N. Halberstadt, B. Lepetit, and O. Roncero, Int. Rev. Phys. Chem. 22, 153(2003).} on the VP processes have been previously reported. In this work, these effects will be examined and the VP mechanism of the \~{A} state of the C$_{3}$Ar complex will be proposed.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Handle URL

https://hdl.handle.net/2142/116972

DOI

https://doi.org/10.15278/isms.2022.WH06

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Copyright 2022 held by the authors

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