铜离子配位调控的TICT荧光化合物的双重荧光发射(英文); Copper(Ⅱ) Ion Coordination-Controlled Twisted Intramolecular Charge Transfer Dual Fluorescence Emission | |
张静丽 ; 范伟贞 ; 闫素婷 ; 林丽榕 ; 黄荣彬 | |
2014-09-10 | |
关键词 | 分子内扭转电荷转移(TICT) 双重荧光 铜离子 配位 “开-关-开” twisted intramolecular charge transfer dual fluorescence copper(Ⅱ) ion coordination "on-off-on" signalling behaviour |
英文摘要 | 设计合成了2个分子内扭转电荷转移(TICT)荧光体(1和2),铜离子的配位作用可开关其双重荧光发射。2在乙腈/水溶液(1∶1,V/V)中的双重荧光发射随着铜离子的加入以类似电子转移机制“开-关“形式猝灭,而1在铜离子与其计量比为1之内的乙腈/水溶液(1∶1,V/V)中,其双重荧光发射随着铜离子的加入逐渐猝灭;在计量比之后其长波长的TICT荧光发射随着铜离子的加入逐渐增强。即1的TICT荧光发射以“开-关-开“的机制被铜离子诱导。同时还获得了铜离子与1形成的配合物的晶体结构以及配合物的荧光性质。1H nMr波谱滴定实验表明荧光体的电荷转移程度是影响TICT发射的主要因素,1是一个新的且其TICT发射可以被铜离子调制为“开-关-开“的TICT荧光体。; Two twisted intramolecular charge transfer(TICT) fluorophores(1 and 2) were designed and synthesized to control the dual fluorescence emission by Cu2 +coordination.The dual fluorescence of 2 is quenched upon the addition of Cu2+ions in an "on-off" process similar to PET inhibition.The dual fluorescence of 1 exhibits emission quenching initially and then long-wavelength band(TICT band) emission enhancement with "on-off-on" signalling behaviour.The crystal structure of the Cu2+complex with 1 was also obtained, and its fluorescence properties were reported.1H NMR spectral titration results indicate that the degree of charge transfer is a crucial factor for the resulting TICT state emission.Fluorophore 1 is a new TICT compound in which TICT emission can be tuned by copper ions with a dramatic change via "on-off-on" signalling behaviour.CCDC: 899958, Cu2+-1.; 国家自然科学基金(No.21271150); 国家基础科学人才培养基金(No.J1310024)资助项目 |
语种 | zh_CN |
内容类型 | 期刊论文 |
源URL | [http://dspace.xmu.edu.cn/handle/2288/107046] |
专题 | 化学化工-已发表论文 |
推荐引用方式 GB/T 7714 | 张静丽,范伟贞,闫素婷,等. 铜离子配位调控的TICT荧光化合物的双重荧光发射(英文), Copper(Ⅱ) Ion Coordination-Controlled Twisted Intramolecular Charge Transfer Dual Fluorescence Emission[J],2014. |
APA | 张静丽,范伟贞,闫素婷,林丽榕,&黄荣彬.(2014).铜离子配位调控的TICT荧光化合物的双重荧光发射(英文).. |
MLA | 张静丽,et al."铜离子配位调控的TICT荧光化合物的双重荧光发射(英文)".(2014). |
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