DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jarek, RL | - |
dc.contributor.author | Shin, SK | - |
dc.date.accessioned | 2016-04-01T08:55:25Z | - |
dc.date.available | 2016-04-01T08:55:25Z | - |
dc.date.created | 2009-09-30 | - |
dc.date.issued | 1997-07-09 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.other | 1997-OAK-0000016430 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/29063 | - |
dc.description.abstract | The formation of C6SiH7+ from phenylsilane was studied using Fourier transform ion cyclotron resonance spectrometry and by ab initio calculations. The (parent - H or D)(+) ions were produced by electron impact (EI) dissociation of C6H5SiH3 and C6H5SiD3, and their bimolecular reactivities toward phenylsilane, cycloheptatriene, benzyl chloride, benzene-d(6), and toluene-d(8) were examined. The reactive component that abstracts hydride from phenylsilane and cycloheptatriene or chloride from benzyl chloride is mostly the phenylsilyl cation C6H5SiH2+. The identity of the unreactive component was characterized by collision-induced dissociation and bimolecular chemical reactivity. The low-energy collision-induced dissociation of the unreactive C6SiH7+ ion with argon yielded SiH+ with a loss of C6H6 and C6SiH5+ with a loss of H-2 as the primary fragments. Vibrationally hot C6SiH7+ ions from EI of C6H5SiH3 reacted with benzene-d(6) to form C6D6 . SiH+ adducts, which after few seconds of cooling delay remained unreactive toward cycloheptatriene. Ab initio calculations predict the hydride affinity of C6H6 . SiH+ that forms C6H6 + SiH2 to be comparable to or lower than that of tropylium ion. The chloride affinity of C6H6 . SiH+ that forms C6H6 + SiHCl is estimated to be similar to 4 kcal mol(-1) lower than that of the benzyl cation. Both experiment and theory suggest the C6H6 . SiH+ adduct as the unreactive C6SiH7+ component and not the silacycloheptatrienyl cation. The mechanism of the formation of C6H6 . SiH+ is presented based on the theoretical energetics of radical cations and the transition state for the [1,2] sigmatropic migration of an alpha-H. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.subject | COLLISION-INDUCED DISSOCIATION | - |
dc.subject | TRANSFORM MASS-SPECTROMETRY | - |
dc.subject | GAS-PHASE | - |
dc.subject | ION | - |
dc.subject | TROPYLIUM | - |
dc.subject | TOLUENE | - |
dc.subject | HEATS | - |
dc.subject | STABILITIES | - |
dc.subject | ROTATION | - |
dc.subject | ISOMERS | - |
dc.title | EXPERIMENTAL AND THEORETICAL STUDIES OF SILACYCLOHEPTATRIENYL CATION FORMATION FROM PHENYLSILANE | - |
dc.type | Article | - |
dc.contributor.college | 화학과 | - |
dc.identifier.doi | 10.1021/ja9630295 | - |
dc.author.google | Jarek, RL | - |
dc.author.google | Shin, SK | - |
dc.relation.volume | 119 | - |
dc.relation.issue | 27 | - |
dc.relation.startpage | 6376 | - |
dc.relation.lastpage | 6383 | - |
dc.contributor.id | 10200277 | - |
dc.relation.journal | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.119, no.27, pp.6376 - 6383 | - |
dc.identifier.wosid | A1997XJ83300018 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.endPage | 6383 | - |
dc.citation.number | 27 | - |
dc.citation.startPage | 6376 | - |
dc.citation.title | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.volume | 119 | - |
dc.contributor.affiliatedAuthor | Shin, SK | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 21 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | COLLISION-INDUCED DISSOCIATION | - |
dc.subject.keywordPlus | TRANSFORM MASS-SPECTROMETRY | - |
dc.subject.keywordPlus | GAS-PHASE | - |
dc.subject.keywordPlus | ION | - |
dc.subject.keywordPlus | TROPYLIUM | - |
dc.subject.keywordPlus | TOLUENE | - |
dc.subject.keywordPlus | HEATS | - |
dc.subject.keywordPlus | STABILITIES | - |
dc.subject.keywordPlus | ROTATION | - |
dc.subject.keywordPlus | ISOMERS | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
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