完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Senthilvelan, Annamalai | en_US |
dc.contributor.author | ho, I. -Ting | en_US |
dc.contributor.author | Chang, Kai-Chi | en_US |
dc.contributor.author | Lee, Gene-Hsiang | en_US |
dc.contributor.author | Liu, Yi-Hung | en_US |
dc.contributor.author | Chung, Wen-Sheng | en_US |
dc.date.accessioned | 2014-12-08T15:10:21Z | - |
dc.date.available | 2014-12-08T15:10:21Z | - |
dc.date.issued | 2009 | en_US |
dc.identifier.issn | 0947-6539 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/7898 | - |
dc.identifier.uri | http://dx.doi.org/10.1002/chem.200802654 | en_US |
dc.description.abstract | We report herein a new ditopic calix[4]arene receptor 25,27-bis{[4-amino-4-(1-naphthyl)-2-oxo-3-butenyl]oxy}-26,28-dihydroxycalix[4]arene (2) for the simultaneous complexation of anionic and cationic species. The host molecule 25,27-bis{[3-(1-naphthyl)-5-isoxazolyl]methoxy}-26,28-dihydroxycalix[4]arene (1) was synthesised first and was followed by a [Mo(CO)(6)]mediated ring-opening reaction to give the target receptor 2. The binding properties of ligands 1 and 2 towards metal ions in CH(3)CN were investigated by UV/Vis and fluorescence spectroscopies. The results showed that both ligands I and 2 were highly selective for Cu(II) ions. Upon titration with Cu(II), the fluorescence of I was severely quenched, whereas 2 showed strong fluorescence enhancement because the metal ions help to lock the conformation of the fluorophores. During the complexation of 2 with Cu(II), the Cu(II) was reduced to Cu(I) by the free phenolic OH of 2, whereas the phenol was oxidised by Cu(II), after which it assisted in the trapping of Cu(I). Ditopic behaviour was observed for the complex 2 center dot Cu(I), which showed further enhancement of its fluorescence intensity upon complexation with anions such as acetate or fluoride. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | calixarenes | en_US |
dc.subject | dipolar reactions | en_US |
dc.subject | ditopic receptor | en_US |
dc.subject | fluorescence | en_US |
dc.subject | inclusion compounds | en_US |
dc.title | Cooperative Recognition of a Copper Cation and Anion by a Calix[4]arene Substituted at the Lower Rim by a beta-Amino-alpha,beta-Unsaturated Ketone | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1002/chem.200802654 | en_US |
dc.identifier.journal | CHEMISTRY-A EUROPEAN JOURNAL | en_US |
dc.citation.volume | 15 | en_US |
dc.citation.issue | 25 | en_US |
dc.citation.spage | 6152 | en_US |
dc.citation.epage | 6160 | en_US |
dc.contributor.department | 應用化學系 | zh_TW |
dc.contributor.department | Department of Applied Chemistry | en_US |
dc.identifier.wosnumber | WOS:000267501400011 | - |
dc.citation.woscount | 63 | - |
顯示於類別: | 期刊論文 |