Resonance-enhanced multiphoton ionization (REMPI) spectroscopy of bromobenzene and its perdeuterated isotopologue: assignment of the vibrations of the S0, S1 and D0+ states of bromobenzene and the S0 and D0+ states of iodobenzene

Andrejeva, Anna, Tuttle, William D., Harris, Joe P. and Wright, Timothy G. (2015) Resonance-enhanced multiphoton ionization (REMPI) spectroscopy of bromobenzene and its perdeuterated isotopologue: assignment of the vibrations of the S0, S1 and D0+ states of bromobenzene and the S0 and D0+ states of iodobenzene. Journal of Chemical Physics, 143 . 244320/1-244320/19. ISSN 0021-9606 (In Press)

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Abstract

We report vibrationally-resolved spectra of the S1  S0 transition of bromobenzene using resonance-enhanced multiphoton ionization (REMPI) spectroscopy. We study bromobenzene-h5 as well as its perdeuterated isotopologue, bromobenzene-d5. The form of the vibrational modes between the isotopologues and also between the S0 and S1 electronic states are discussed for each species, allowing assignment of the bands to be achieved and the activity between states and isotopologues to be established. Vibrational bands are assigned utilizing quantum chemical calculations, previous experimental results and isotopic shifts. Previous work and assignments of the S1 spectra are discussed. Additionally, the vibrations in the ground state cation, D0+, are considered, since these have also been used by previous workers in assigning the excited neutral state spectra. We also examine the vibrations of iodobenzene in the S0 and D0+ states and comment on previous assignments of these. In summary, we have been able to assign corresponding vibrations across the whole monohalobenzene series of molecules, in the S0, S1 and D0+ states, gaining insight into vibrational activity and vibrational couplings.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/768260
Additional Information: Copyright 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in A. Andrejeva et al., Journal of Chemical Physics 56, 051502 (2015) http://dx.doi.org/10.1063/1.4938501 and may be found at http://scitation.aip.org/content/aip/journal/jcp/143/24/10.1063/1.4938501.
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Chemistry
Identification Number: https://doi.org/10.1063/1.4938501
Depositing User: Bramwell, Roseanna
Date Deposited: 05 Jan 2016 12:39
Last Modified: 04 May 2020 17:25
URI: https://eprints.nottingham.ac.uk/id/eprint/31036

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