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Kwon, Oh Hoon
Ultrafast Laser Spectroscopy and Nano-microscopy (ULSaN Lab)
Research Interests
  • Femtochemistry/biology, 4D electron microscopy, structural dynamics, materials phenomena

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Excited-state proton-relay dynamics of 7-hydroxyquinoline embedded in a solid matrix of poly(2-hydroxyethyl methacrylate)

DC Field Value Language
dc.contributor.author Kwon, Oh Hoon ko
dc.contributor.author Doo, H ko
dc.contributor.author Lee, YS ko
dc.contributor.author Jang, DJ ko
dc.date.available 2014-11-14T00:19:47Z -
dc.date.created 2014-11-13 ko
dc.date.issued 2003-10 ko
dc.identifier.citation CHEMPHYSCHEM, v.4, no.10, pp.1079 - 1083 ko
dc.identifier.issn 1439-4235 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/8794 -
dc.description.abstract Excited 7-hydroxyquinoline embedded in a solid matrix of poly(2-hydroxyethyl methacrylate) undergoes a proton-relay reaction efficiently to form its keto tautomer. However, the reaction mechanism depends on the torsional conformation and the microscopic environment of the molecule at the moment of excitation. Whereas the bridged cis-enol form undergoes proton relay immediately on absorption of a photon to produce its tautomeric keto species, the unbridged cis form requires 120 ps for bridge formation via solvent reorganization prior to proton relay. Furthermore, the trans form needs 1000 ps for tautomerization because it requires an activated (11 kJmol-1) torsional motion to change into its cis form prior to bridge formation and proton relay. Torsional motion rather than solvent reorganization determines the proton relay rate of the trans-form of the molecule. ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher WILEY-V C H VERLAG GMBH ko
dc.title Excited-state proton-relay dynamics of 7-hydroxyquinoline embedded in a solid matrix of poly(2-hydroxyethyl methacrylate) ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-0242401897 ko
dc.identifier.wosid 000186151200007 ko
dc.type.rims ART ko
dc.description.wostc 26 *
dc.description.scopustc 26 *
dc.date.tcdate 2015-05-06 *
dc.date.scptcdate 2014-11-13 *
dc.identifier.doi 10.1002/cphc.200300779 ko
dc.identifier.url http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0242401897 ko
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