Isolated Gramicidin Peptides Probed by IR Spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F11%3A43881950" target="_blank" >RIV/60076658:12310/11:43881950 - isvavai.cz</a>
Alternative codes found
RIV/61388963:_____/11:00435209
Result on the web
<a href="http://dx.doi.org/10.1002/cphc.201100212" target="_blank" >http://dx.doi.org/10.1002/cphc.201100212</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/cphc.201100212" target="_blank" >10.1002/cphc.201100212</a>
Alternative languages
Result language
angličtina
Original language name
Isolated Gramicidin Peptides Probed by IR Spectroscopy
Original language description
We report double-resonant IR/UV ion-dip spectroscopy of neutral gramicidin peptides in the gas phase. The IR spectra of gramicidin A and C, recorded in both the 1000 cm(-1) to 1800 cm(-1) and the 2700 to 3750 cm(-1) region, allow structural analysis. Bystudying this broad IR range, various local intramolecular interactions are probed, and complementary IR modes can be accessed. Ab initio quantum chemical calculations are used to support the interpretation of the experimental IR spectra. The comparisonof the calculated frequencies with the experimental IR spectrum probed via the strong infrared absorptions of all the amide groups (NH stretch, C=O stretch and NH bend), shows evidence for a helical structure in the gas phase, which is similar to that inthe condensed phase. Additionally, we show that to improve the spectral resolution when studying large neutral molecular structures of the size of gramicidin, the use of heavier carrier gas could be advantageous.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ChemPhysChem (print)
ISSN
1439-4235
e-ISSN
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Volume of the periodical
12
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
1816-1821
UT code for WoS article
000293385000008
EID of the result in the Scopus database
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