DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Kang-Mun | ko |
dc.contributor.author | Huh, Jung-Oh | ko |
dc.contributor.author | Kim, Tae-Won | ko |
dc.contributor.author | Do, Young-Kyu | ko |
dc.contributor.author | Lee, Min-Hyung | ko |
dc.date.accessioned | 2013-03-11T02:01:11Z | - |
dc.date.available | 2013-03-11T02:01:11Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2011 | - |
dc.identifier.citation | DALTON TRANSACTIONS, v.40, no.44, pp.11758 - 11764 | - |
dc.identifier.issn | 1477-9226 | - |
dc.identifier.uri | http://hdl.handle.net/10203/97992 | - |
dc.description.abstract | A triarylborane (2) bearing three o-carborane cages at peripheral positions on the aryl groups was prepared and its crystal structure was determined from X-ray diffraction study. Treatment of 2 with KF in the presence of 18-crown-6 led to the potassium salt, [2F](-). A UV-vis titration experiment carried out in THF/H(2)O (9/1 v/v) showed that 2 binds fluoride ions with a binding constant (K) of 4.8 x 10(4) M(-1), which is an order-of-magnitude greater than K for the mono-carborane substituted triarylborane. The enhanced fluoride ion affinity of 2 indicates an apparent additive effect of multiple carborane substitutions on the Lewis acidity enhancement of the triarylborane. The highly Lewis acidic nature of 2 was further utilized in evaluating the fluoride ion affinity of tris(pentafluorophenyl) borane (B(C(6)F(5))3). A fluoride exchange reaction between [2F](-) and B(C(6)F(5))(3) resulted in 15 times higher fluorophilicity for B(C(6)F(5))(3) than for 2. The lower Lewis acidity of 2 compared with B(C(6)F(5))(3) was confirmed from its greater cathodic reduction potential. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | STEREOSPECIFIC OLEFIN POLYMERIZATION | - |
dc.subject | WEAKLY COORDINATING ANIONS | - |
dc.subject | FLUORIDE-ION COMPLEXATION | - |
dc.subject | BIFUNCTIONAL PERFLUOROARYL BORANES | - |
dc.subject | ELECTRON-ACCEPTING ABILITY | - |
dc.subject | CHARGE-TRANSFER EMISSION | - |
dc.subject | CATIONIC BORANE | - |
dc.subject | METAL-FREE | - |
dc.subject | 3-COORDINATE ORGANOBORON | - |
dc.subject | SELECTIVE COMPLEXATION | - |
dc.title | A highly Lewis acidic triarylborane bearing peripheral o-carborane cages | - |
dc.type | Article | - |
dc.identifier.wosid | 000296776200015 | - |
dc.identifier.scopusid | 2-s2.0-80755130536 | - |
dc.type.rims | ART | - |
dc.citation.volume | 40 | - |
dc.citation.issue | 44 | - |
dc.citation.beginningpage | 11758 | - |
dc.citation.endingpage | 11764 | - |
dc.citation.publicationname | DALTON TRANSACTIONS | - |
dc.contributor.localauthor | Do, Young-Kyu | - |
dc.contributor.nonIdAuthor | Kim, Tae-Won | - |
dc.contributor.nonIdAuthor | Lee, Min-Hyung | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | STEREOSPECIFIC OLEFIN POLYMERIZATION | - |
dc.subject.keywordPlus | WEAKLY COORDINATING ANIONS | - |
dc.subject.keywordPlus | FLUORIDE-ION COMPLEXATION | - |
dc.subject.keywordPlus | BIFUNCTIONAL PERFLUOROARYL BORANES | - |
dc.subject.keywordPlus | ELECTRON-ACCEPTING ABILITY | - |
dc.subject.keywordPlus | CHARGE-TRANSFER EMISSION | - |
dc.subject.keywordPlus | CATIONIC BORANE | - |
dc.subject.keywordPlus | METAL-FREE | - |
dc.subject.keywordPlus | 3-COORDINATE ORGANOBORON | - |
dc.subject.keywordPlus | SELECTIVE COMPLEXATION | - |
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