There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 58 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 51 | - |
dc.citation.title | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | - |
dc.citation.volume | 191 | - |
dc.contributor.author | Seo, Jangwon | - |
dc.contributor.author | Kim, Sehoon | - |
dc.contributor.author | Lee, Young-Shin | - |
dc.contributor.author | Kwon, Oh Hoon | - |
dc.contributor.author | Park, Kang Hyun | - |
dc.contributor.author | Choi, Soo Young | - |
dc.contributor.author | Chung, Young Keun | - |
dc.contributor.author | Jang, Du-Jeon | - |
dc.contributor.author | Park, Soo Young | - |
dc.date.accessioned | 2023-12-22T09:10:25Z | - |
dc.date.available | 2023-12-22T09:10:25Z | - |
dc.date.created | 2014-11-13 | - |
dc.date.issued | 2007-09 | - |
dc.description.abstract | We report highly fluorescent oxadiazole-based excited-state intramolecular proton-transfer (ESIPT) material, 2,5-bis-[5-(4-tert-butyl-phenyl)-[1,3,4]oxadiazol-2-yl]-phenol (SOX) in solid state film (Φf = 0.47) as well as in solution (Φf = 0.40). From the single crystal X-ray crystallography, a molecular geometry of SOX was found to be nearly planar due to the strong intramolecular hydrogen-bond between the hydroxyl and oxadiazole groups to give rise to the virtually single keto fluorescence. In view of the molecular arrangement, a specific dimer interaction caused by a Coulomb attraction in the SOX crystal was most likely associated with a sliding-away stacking, which contributed to the intense solid-state fluorescence. On the other hand, 2,5-bis-[5-(4-tert-butyl-phenyl)-[1,3,4]oxadiazol-2-yl]-benzene-1,4-diol (DOX) with dual ESIPT sites but otherwise the same as SOX showed a significantly red-shifted orange emission (λem = 573 nm) of keto tautomer relative to the bluish-green emission (λem = 486 nm) of SOX in chloroform. Similarly, the fluorescence emission of DOX in solid-state film (Φf = 0.13) was highly enhanced from that in solution (Φf = 0.02). Interestingly, SOX and DOX showed well-defined room-temperature phosphorescence. Kinetic studies on the ESIPT keto fluorescence as well as the phosphorescence were investigated using picosecond laser experiments. | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, v.191, no.1, pp.51 - 58 | - |
dc.identifier.doi | 10.1016/j.jphotochem.2007.04.003 | - |
dc.identifier.issn | 1010-6030 | - |
dc.identifier.scopusid | 2-s2.0-34547689423 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/8760 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=34547689423 | - |
dc.identifier.wosid | 000249413500008 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Enhanced solid-state fluorescence in the oxadiazole-based excited-state intramolecular proton-transfer (ESIPT) material: Synthesis, optical property, and crystal structure | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | excited-state intramolecular proton-transfer (ESIPT) | - |
dc.subject.keywordAuthor | oxadiazole | - |
dc.subject.keywordAuthor | enhanced solid-state fluorescence | - |
dc.subject.keywordAuthor | room-temperature phosphorescence | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | AMPLIFIED SPONTANEOUS EMISSION | - |
dc.subject.keywordPlus | BIFUNCTIONAL COMPOUNDS |
- |
dc.subject.keywordPlus | STIMULATED-EMISSION | - |
dc.subject.keywordPlus | TRANSFER DYE | - |
dc.subject.keywordPlus | NODAL-PLANE | - |
dc.subject.keywordPlus | DERIVATIVES | - |
dc.subject.keywordPlus | ELECTROLUMINESCENCE | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.subject.keywordPlus | LUMINESCENCE | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.