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Journal Article

Fingerprint IR spectroscopy to probe amino acid conformations in the gas phase

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Meijer,  Gerard
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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e203003.pdf
(Publisher version), 333KB

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Citation

Bakker, J. M., Aleese, L. M., Meijer, G., & Helden, G. v. (2003). Fingerprint IR spectroscopy to probe amino acid conformations in the gas phase. Physical Review Letters, 91(20): 203003. doi:10.1103/PhysRevLett.91.203003.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0EC4-C
Abstract
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.