Structures and isomerization of neutral and zwitterion serine-water clusters: Computational study

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dc.contributor.authorJeon, ISko
dc.contributor.authorAhn, DSko
dc.contributor.authorPark, SWko
dc.contributor.authorLee, Sko
dc.contributor.authorKim, Bongsooko
dc.date.accessioned2013-03-07T18:11:59Z-
dc.date.available2013-03-07T18:11:59Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2005-01-
dc.identifier.citationINTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, v.101, no.1, pp.55 - 66-
dc.identifier.issn0020-7608-
dc.identifier.urihttp://hdl.handle.net/10203/90878-
dc.description.abstractCalculations are presented for the structure and the isomerization reaction of various conformers of the bare serine, neutral serine-(H2O)(n) and serine zwitterion-(H2O)(n)(n = 1, 2) clusters. The effects of binding water molecules on the relative stability and the isomerization processes are examined. Hydrogen bonding between serine and the water molecule(s) may significantly affect the relative stability of conformers of the neutral serine-(H2O)(n) (n = 1, 2) clusters. The sidechain (OH group) in serine is found to have a profound effect on the structure and isomerization of serine-(H2O)(n) (n = 1, 2) clusters. Conformers with the hydrogen bonding between water and the hydroxyl group of serine are predicted. A detailed analysis is presented of the isomerization (proton transfer) pathways between the neutral serine-(H2O)(2) and serine zwitterion-(H2O)(2) clusters by carrying out the intrinsic reaction coordinate analysis. At least two water molecules need to bind to produce the stable serine zwitterion-water cluster in the gas phase. The isomerization for the serine-(H2O)(2) cluster proceeds by the concerted double and triple proton transfer mechanism occurring via the binding water molecules, or via the hydroxyl group. (C) 2004 Wiley Periodicals, Inc.-
dc.languageEnglish-
dc.publisherJOHN WILEY SONS INC-
dc.subjectINTRAMOLECULAR PROTON-TRANSFER-
dc.subjectION-DIP SPECTROSCOPY-
dc.subjectAROMATIC-AMINO-ACIDS-
dc.subjectGAS-PHASE-
dc.subjectCONFORMATIONAL LANDSCAPES-
dc.subjectGLYCINE ZWITTERION-
dc.subjectHYDRATED CLUSTERS-
dc.subjectAQUEOUS-SOLUTION-
dc.subjectL-PHENYLALANINE-
dc.subjectAB-INITIO-
dc.titleStructures and isomerization of neutral and zwitterion serine-water clusters: Computational study-
dc.typeArticle-
dc.identifier.wosid000225205900007-
dc.identifier.scopusid2-s2.0-10044232671-
dc.type.rimsART-
dc.citation.volume101-
dc.citation.issue1-
dc.citation.beginningpage55-
dc.citation.endingpage66-
dc.citation.publicationnameINTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY-
dc.identifier.doi10.1002/qua.20269-
dc.contributor.localauthorKim, Bongsoo-
dc.contributor.nonIdAuthorJeon, IS-
dc.contributor.nonIdAuthorAhn, DS-
dc.contributor.nonIdAuthorPark, SW-
dc.contributor.nonIdAuthorLee, S-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorserine-(H2O)(n)-
dc.subject.keywordAuthorserine-zwitterion-(H2O)(n)-
dc.subject.keywordAuthorclusters-
dc.subject.keywordAuthorconformers-
dc.subject.keywordAuthorisomerization-
dc.subject.keywordPlusINTRAMOLECULAR PROTON-TRANSFER-
dc.subject.keywordPlusION-DIP SPECTROSCOPY-
dc.subject.keywordPlusAROMATIC-AMINO-ACIDS-
dc.subject.keywordPlusGAS-PHASE-
dc.subject.keywordPlusCONFORMATIONAL LANDSCAPES-
dc.subject.keywordPlusGLYCINE ZWITTERION-
dc.subject.keywordPlusHYDRATED CLUSTERS-
dc.subject.keywordPlusAQUEOUS-SOLUTION-
dc.subject.keywordPlusL-PHENYLALANINE-
dc.subject.keywordPlusAB-INITIO-
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