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          Institute: Fritz-Haber-Institut     Collection: Molecular Physics     Display Documents



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ID: 60110.0, Fritz-Haber-Institut / Molecular Physics
Fingerprint IR spectroscopy to probe amino acid conformations in the gas phase
Authors:Bakker, Joost M.; Aleese, Luke M.; Meijer, Gerard; Helden, Gert von
Language:English
Date of Publication (YYYY-MM-DD):2003-11-14
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Volume:91
Issue / Number:20
Start Page:203003-1
End Page:203003-4
Copyright:2003 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:We report the infrared (IR) absorption spectra of different conformational isomers of gas phase amino acid molecules in the molecular fingerprint region of 330-1500 cm(-1). The IR absorption spectra for three conformers of the amino acid tryptophan show absorption bands that uniquely identify the conformational structure of the molecule and that are well matched by density functional theory calculations. The present observations hold great promise for future identification of conformational folding of larger molecules by means of their IR absorption characteristics.
Free Keywords:ION-DIP SPECTROSCOPY; SHEET MODEL SYSTEM; MASS-SPECTROMETRY; DOUBLE-RESONANCE; IONIZATION; CLUSTERS; BIOMOLECULES; TRYPTOPHAN: LANDSCAPES; DIPEPTIDE
External Publication Status:published
Document Type:Article
Communicated by:Gerard Meijer
Affiliations:Fritz-Haber-Institut/Molecular Physics
External Affiliations:FOM, Inst Plasmaphys Rijnhuizen, Nieuwegein, The Netherlands; Univ Paris 11, Chim Phys Lab, UMR 8000, CNRS, Orsay, France; Univ Nijmegen, Dept Mol & Laser Phys, Nijmegen,The Netherlands
Identifiers:URL:http://ojps.aip.org/getabs/servlet/GetabsServlet?p...
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