beta-Diketones bearing electron-donating chromophores and a novel beta-triketone: synthesis and reversible fluorescence behavior | |
Zhang, X ; Li, ZC ; Xu, N ; Li, KB ; Lin, S ; Lu, FZ ; Du, FS ; Li, FM | |
刊名 | 四面体通讯
![]() |
2006 | |
关键词 | AGGREGATION BEHAVIOR TAUTOMERIZATION POLYMERIZATION BISMALEIMIDES SPECTROSCOPY MALEIMIDES MONO |
DOI | 10.1016/j.tetlet.2006.02.019 |
英文摘要 | Saturated and unsaturated beta-diketones bearing 4-N,N-dimethylaminophenyl substituent and a novel beta-triketone were synthesized. These beta-diketones exist in both cis-enol and keto forms in solution, and their relative contents were determined by H-1 NMR measurements. In contrast, for the beta-triketone, only enol form was observed in a solution. A strong fluorescence quenching was observed for unsaturated diketones as compared with the saturated ones. These beta-diketones displayed reversible photoinduced ketonization as revealed by UV-vis spectroscopy. The fluorescence emission of the saturated beta-diketones faded gradually during UV irradiation. The fluorescence emission of these saturated beta-diketones can thus be reversibly switched between the enol form 'ON' and the keto form 'OFF' based on keto-enol tautomerization. (c) 2006 Elsevier Ltd. All rights reserved.; Chemistry, Organic; SCI(E); 10; ARTICLE; 15; 2623-2626; 47 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/252477] ![]() |
专题 | 化学与分子工程学院 |
推荐引用方式 GB/T 7714 | Zhang, X,Li, ZC,Xu, N,et al. beta-Diketones bearing electron-donating chromophores and a novel beta-triketone: synthesis and reversible fluorescence behavior[J]. 四面体通讯,2006. |
APA | Zhang, X.,Li, ZC.,Xu, N.,Li, KB.,Lin, S.,...&Li, FM.(2006).beta-Diketones bearing electron-donating chromophores and a novel beta-triketone: synthesis and reversible fluorescence behavior.四面体通讯. |
MLA | Zhang, X,et al."beta-Diketones bearing electron-donating chromophores and a novel beta-triketone: synthesis and reversible fluorescence behavior".四面体通讯 (2006). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论