DC Field | Value | Language |
---|---|---|
dc.contributor.author | geon-soo kim | ko |
dc.contributor.author | eunkee hong | ko |
dc.contributor.author | sang chul shim | ko |
dc.date.accessioned | 2013-02-27T18:52:34Z | - |
dc.date.available | 2013-02-27T18:52:34Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1996 | - |
dc.identifier.citation | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, v.101, no.1, pp.39 - 44 | - |
dc.identifier.issn | 1010-6030 | - |
dc.identifier.uri | http://hdl.handle.net/10203/70216 | - |
dc.description.abstract | The photolysis of 3-phenyl-4-phenylethynylcyclobut-3-en-trans-1,2-dicarboxylic acid dimethyl ester (PPCB) in methanol yields 1:I adducts (la-ld, 2a and 2b) and an acetylene reduction product (3). The major products are 2a and 2b under neutral conditions, whereas la and Ib are the major products under acidic conditions and/or in the presence of electron donors, such as I,4-dimethoxybenzene. The fluorescence of PPCB decreases as the concentration of sulphuric acid is increased. Azulene quenching studies suggest that 1a-2b are formed from the singlet excited state, whereas the triplet excited state yields 3. The formation of the photoadducts la-ld can be correlated with the atomic charge of excited PPCB, suggesting an exciplex and a carbocation, rather than carbenoid, intermediate in the reaction. | - |
dc.language | English | - |
dc.publisher | Elsevier Science Sa | - |
dc.subject | PHOTOINDUCED ELECTRON-TRANSFER | - |
dc.subject | CONJUGATED POLYACETYLENES | - |
dc.subject | PHOTOCHEMISTRY | - |
dc.subject | PHOTOREACTION | - |
dc.subject | 1,4-DIPHENYL-1,3-BUTADIYNE | - |
dc.subject | OLEFINS | - |
dc.title | Photolysis of 3-Phenyl-4-phenylethynylcyclobut-3-en-$trans$-1,2-dicarboxylic Acid Dimethyl Ester in Methanol | - |
dc.type | Article | - |
dc.identifier.wosid | A1996WB09900007 | - |
dc.identifier.scopusid | 2-s2.0-0030588894 | - |
dc.type.rims | ART | - |
dc.citation.volume | 101 | - |
dc.citation.issue | 1 | - |
dc.citation.beginningpage | 39 | - |
dc.citation.endingpage | 44 | - |
dc.citation.publicationname | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | - |
dc.contributor.nonIdAuthor | geon-soo kim | - |
dc.contributor.nonIdAuthor | eunkee hong | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | methanol | - |
dc.subject.keywordAuthor | 3-phenyl-4-phenylethynylcyclobut-3-en-trans-dicarboxylic acid dimethyl ester | - |
dc.subject.keywordAuthor | photolysis | - |
dc.subject.keywordPlus | PHOTOINDUCED ELECTRON-TRANSFER | - |
dc.subject.keywordPlus | CONJUGATED POLYACETYLENES | - |
dc.subject.keywordPlus | PHOTOCHEMISTRY | - |
dc.subject.keywordPlus | PHOTOREACTION | - |
dc.subject.keywordPlus | 1,4-DIPHENYL-1,3-BUTADIYNE | - |
dc.subject.keywordPlus | OLEFINS | - |
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