Far-infrared spectra of the tryptamine A conformer by IR-UV ion gain spectroscopy
Publication year
2016Source
PCCP Physical Chemistry Chemical Physics, 18, 47, (2016), pp. 32116-32124ISSN
Publication type
Article / Letter to editor

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Organization
Molecular and Biophysics
Molecular Structure and Dynamics
Journal title
PCCP Physical Chemistry Chemical Physics
Volume
vol. 18
Issue
iss. 47
Page start
p. 32116
Page end
p. 32124
Subject
FELIX; Molecular Structure and Dynamics; Molecular and BiophysicsAbstract
We present far infrared spectra of the conformer A of tryptamine in the 200 to 500 cm-1 wavenumber range along with resonant photoionization spectra of the far-infrared excited conformer A of tryptamine. We show that single-far-infrared photon excited tryptamine has highly structured resonance enhanced multi-photon ionization spectra, revealing the mode composition of the S1-state. Upon multiple-far-infrared photon absorption, the resonance enhanced multi-photon ionization spectrum broadens allowing ion gain spectroscopy to be performed. In the ion gain spectrum we detect the fundamental far-infrared modes but also combination and overtone bands with high efficiency. The implications to dip spectroscopy using a free electron laser compared to more conventional light sources are discussed.
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- Academic publications [227864]
- Electronic publications [107338]
- Faculty of Science [33774]
- Open Access publications [76459]
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