NDLI: IR spectroscopy of protonated leu-enkephalin and its 18-crown-6 complex embedded in helium droplets.

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IR spectroscopy of protonated leu-enkephalin and its 18-crown-6 complex embedded in helium droplets.

Content Provider	Semantic Scholar
Author	Flórez, Ana Isabel González Ahn, Doo-Sik Gewinner, Sandy Schöllkopf, Wieland Helden, Gert Von
Copyright Year	2015
Abstract	Ultracold IR spectra of the protonated five amino acid peptide leu-enkephalin (Tyr-Gly-Gly-Phe-Leu) embedded in superfluid helium droplets have been recorded using a free-electron laser as radiation source. The results show resolved spectra, which are in good agreement with theoretical calculations, as well as with the available gas-phase data indicating that the helium environment does not induce a significant matrix-shift. In addition, the effect of the interaction between the charge and the peptide backbone has been further investigated by complexing protonated leu-enkephalin with one 18-crown-6 molecule. Good agreement between the experimental and theoretical results allow for an assignment of a preferred molecular structure.
File Format	PDF HTM / HTML
DOI	10.1039/c5cp02172c
PubMed reference number	26234567
Journal	Medline
Volume Number	17
Issue Number	34
Alternate Webpage(s)	https://pubs.rsc.org/en/content/articlepdf/2015/cp/c5cp02172c
Alternate Webpage(s)	http://fel.fhi-berlin.mpg.de/uploads/Gonzalez_PCCP_2015.pdf
Alternate Webpage(s)	http://www.rsc.org/suppdata/c5/cp/c5cp02172c/c5cp02172c1.pdf
Alternate Webpage(s)	https://doi.org/10.1039/c5cp02172c
Journal	Physical chemistry chemical physics : PCCP
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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