Boosting the sensitivity of pH responsible luminescent switches of polypyridyl ruthenium(II) complexes by structural design
Boosting the sensitivity of pH responsible luminescent switches of polypyridyl ruthenium(II) complexes by structural design
复制标题
通过结构设计提高聚吡啶钌(II)配合物的pH响应发光开关的灵敏度
DOI：
10.1016/j.inoche.2011.11.021
复制
发表时间：
2012-02-01
影响因子：
3.8
通讯作者：
Ji, Liang-Nian
中科院分区：
文献类型：
--
作者：
Gao, Feng;Chen, Xing;Ji, Liang-Nian
设计了一系列新型的多吡啶钌（II）配合物，它们分别与两个4，7-二苯基-1，10-菲咯啉（dip）和一个2-苯基-1H-咪唑并[4，5-f][1，10]菲咯啉（pip）或其类似物形成配合物，通过在室温水溶液中质子化含咪唑的pip配体来实现pH响应的发光开关。含有甲氧基的复合物显示出110的开关比，高于任何报道的pH光开关。这种极高的灵敏度归因于较高的LUMO能级和甲氧基的供电子性质。(C)2011 Elsevier B. V.保留所有权利。
A series of novel polypyridyl ruthenium(II) complexes with two 4,7-diphenyl-1,10-phenanthroline (dip) and one 2-phenyl-1H-imidazo[4,5-f][1,10]phenanthroline (pip) or its analogs have been designed to act as pH responsible luminescent switches through protonation of the imidazole-containing pip ligands in aqueous solution at room temperature. The complex containing methoxyl group showed an on-off ratio of 110 that is higher than any reported pH light switch. This extraordinary high sensitivity is attributed to both the higher LUMO energy level and the electronic donating property of methoxyl group. (C) 2011 Elsevier B.V. All rights reserved.