BROWSE

Related Scientist

cslm's photo.

cslm
첨단연성물질연구단
more info

ITEM VIEW & DOWNLOAD

Acid-base reaction of a cationic hydration probe in vicinity of anionic interface of AOT reverse micelles

DC Field Value Language
dc.contributor.authorHak-Won Nho-
dc.contributor.authorJae-Heon Park-
dc.contributor.authorAniruddha Adhikari-
dc.contributor.authorOh-Hoon Kwon-
dc.date.accessioned2021-03-22T04:50:03Z-
dc.date.accessioned2021-03-22T04:50:03Z-
dc.date.available2021-03-22T04:50:03Z-
dc.date.available2021-03-22T04:50:03Z-
dc.date.created2021-02-23-
dc.date.issued2021-03-15-
dc.identifier.issn0167-7322-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/9238-
dc.description.abstractThe excited-state proton transfer (ESPT) of a cationic super-photoacid, N-methyl-7-hydroxyquinolium, has been studied within the water pool of an aerosol-OT reverse micelle (RM). Time-resolved emission spectra were obtained and analyzed to reveal the effect of environmental heterogeneity on the ESPT process. The ESPT was found to involve two main emissive species, namely the excited cationic and keto forms of the photoacid and was facilitated by scenarios that expose them to an abundance of water molecules. The dynamic charge-state transition (from positive to neutral) induced by the ESPT dictated the location and diffusion of the probe with the modulation of the Coulombic interaction between the probe and anionic interface of the RM. The non-exponential behavior of the ESPT was observed using time-resolved intensity profiles and rationalized in terms of the heterogeneity along the reaction coordinates involving the hydrogen-bond network, polarity, and viscosity of the confined water pool within the RM. It was found that the disruption of the hydrogen-bond network in the vicinity of the interface resulted in the decrease of polarity that retarded the overall ESPT by modulating the energetics of the reactant and the product in the ESPT. Solvation dynamics was also considered and found to occur on timescales faster than the ESPT process, profoundly for larger water pools. (C) 2020 Elsevier B.V. All rights reserved.-
dc.language영어-
dc.publisherELSEVIER-
dc.titleAcid-base reaction of a cationic hydration probe in vicinity of anionic interface of AOT reverse micelles-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000636833000043-
dc.identifier.scopusid2-s2.0-85099179541-
dc.identifier.rimsid74541-
dc.contributor.affiliatedAuthorJae-Heon Park-
dc.contributor.affiliatedAuthorOh-Hoon Kwon-
dc.identifier.doi10.1016/j.molliq.2020.115270-
dc.identifier.bibliographicCitationJOURNAL OF MOLECULAR LIQUIDS, v.326, pp.1 - 13-
dc.relation.isPartOfJOURNAL OF MOLECULAR LIQUIDS-
dc.citation.titleJOURNAL OF MOLECULAR LIQUIDS-
dc.citation.volume326-
dc.citation.startPage1-
dc.citation.endPage13-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaPhysics-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryPhysics, Atomic, Molecular & Chemical-
dc.subject.keywordPlusSTATE PROTON-TRANSFER-
dc.subject.keywordPlusSOLVATION DYNAMICS-
dc.subject.keywordPlusEXCITED 7-HYDROXYQUINOLINE-
dc.subject.keywordPlusBIOLOGICAL WATER-
dc.subject.keywordPlusFLUORESCENCE-
dc.subject.keywordPlusDEPOLARIZATION-
dc.subject.keywordPlusEMISSION-
dc.subject.keywordPlusALCOHOL-
dc.subject.keywordPlusSPECTRA-
dc.subject.keywordPlusCHAIN-
dc.subject.keywordAuthorExcited state proton transfer-
dc.subject.keywordAuthorPrototropy-
dc.subject.keywordAuthorReverse micelle-
dc.subject.keywordAuthorHeterogeneity-
dc.subject.keywordAuthorConstrained water-
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse