REMPI and double resonance spectroscopy of L-β-homotryptophan in gas phase

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https://hdl.handle.net/2142/59144

Title: REMPI and double resonance spectroscopy of L-β-homotryptophan in gas phase
Author(s): Kang, Hyuk
Issue Date: 2014-06-17
Keyword(s): Biology, natural substances
Abstract: Resonance enhance multiphoton ionization (REMPI) and UV-UV double resonance spectra of L-$\beta$-homotryptophan (HTrp) was obtained. Hydrochloride salt of HTrp was applied on a lateral surface of a graphite disk, desorbed by 1064 nm nanosecond laser pulses, and subsequently cooled down by expanding gas from a pulsed valve. Formation of neutral HTrp by laser-desorption was confirmed by its mass spectrum. The REMPI spectrum shows several peaks in a UV region similar to that of tryptophan. UV-UV hole-burning spectrum was obtained and compared with quantum mechanical calculation. Based on the experimental and computational results, conformation preference of HTrp is discussed.
Publisher: International Symposium on Molecular Spectroscopy
Type of Resource: text
Language: en
Permalink: http://hdl.handle.net/2142/59144
DOI: https://doi.org/10.15278/isms.2014.TD05
Copyright and License Information: Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/