Far-infrared spectra of the tryptamine A conformer by IR-UV ion gain spectroscopyElectronic supplementary information (ESI) available. See DOI: 10.1039/c6cp02358d

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 enha...

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Bibliographic Details
Main Authors: Schmitt, Michael, Spiering, Frans, Zhaunerchyk, Vitali, Jongma, Rienk T, Jaeqx, Sander, Rijs, Anouk M, van der Zande, Wim J
Format: Article
Language:English
Online Access:Get full text
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Summary: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 S 1 -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. Single-far-infrared photon excited tryptamine has structured resonance enhanced multi-photon ionization UV spectra, revealing the mode composition of the S 1 -state. Upon multiple-far-infrared photon absorption, the UV spectrum broadens allowing ion gain spectroscopy to be performed.
ISSN:1463-9076
1463-9084
DOI:10.1039/c6cp02358d