Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 11, Issue 48, Pages 11479-11486Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b913422k
Keywords
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Funding
- University Paris-Sud 11
- ANR [NT05-1 44224]
- procope [17832NK]
- Atomic Energy Commission of Syria
- Isfahan University of Technology
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The photofragmentation spectrum of protonated benzaldehyde has been recorded in the 435-385 nm wavelength range. The first excited state is a pi pi* state, strongly red shifted compared to the pi pi* 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.
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