Issue 48, 2009
From the journal:

Physical Chemistry Chemical Physics

Electronically excited states of protonated aromatic molecules: benzaldehyde†

I. Alata,ab   R. Omidyan,‡a   C. Dedonder-Lardeux,*ac   M. Broquierac  and  C. Jouvetac  

* Corresponding authors

a Centre Laser de l’Université Paris Sud (EA. 4127), Bât. 106, Univ Paris-Sud 11, 91405 Orsay Cedex, France
E-mail: claude.dedonder-lardeux@u-psud.fr
Web: http://www.clups.u-psud.fr/
Fax: +33 (1)6915 6777/3620
Tel: +33 (1)6915 7876/3111

b Atomic Energy Commission of Syria, Damascus, P.O. Box 6091, Syria
Web: http://www.aec.org.sy/

c Laboratoire de Photophysique Moléculaire du CNRS (UPR 3361), Bât. 210, Univ Paris-Sud 11, 91405 Orsay Cedex, France
Web: http://www.ppm.u-psud.fr/

Abstract

The photofragmentation spectrum of protonated benzaldehyde has been recorded in the 435–385 nm wavelength range. The first excited state is a ππ* state, strongly red shifted compared to the ππ* state of neutral benzaldehyde. The spectrum presents well resolved vibronic bands in contrast to some other protonated aromatic molecules like benzene or tryptophan in which the excited state dynamics is so fast that no vibrational structure can be observed. The bands can be assigned on the basis of a Franck–Condon analysis using ground and excited state frequencies calculated at the CC2/TZVP level.

Graphical abstract: Electronically excited states of protonated aromatic molecules: benzaldehyde

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Article information

DOI
https://doi.org/10.1039/B913422K
Article type
Paper
Submitted
07 Jul 2009
Accepted
30 Sep 2009
First published
21 Oct 2009

Phys. Chem. Chem. Phys., 2009,11, 11479-11486

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Electronically excited states of protonated aromatic molecules: benzaldehyde

I. Alata, R. Omidyan, C. Dedonder-Lardeux, M. Broquier and C. Jouvet, Phys. Chem. Chem. Phys., 2009, 11, 11479 DOI: 10.1039/B913422K

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