作者:Yuji Mikata、Azusa Yamashita、Ayano Kawamura、Hideo Konno、Yuka Miyamoto、Satoshi Tamotsu
DOI:10.1039/b820763a
日期:——
derivatives, N,N'-bis(2-quinolylmethyl)-N,N'-dialkylethylnediamines (alkyl=methyl, ethyl, isopropyl and t-butyl), have been synthesized and their fluorescent responses toward zinc ion were investigated. These compounds exhibit zinc ion-induced fluorescence and their intensities decrease as the alkyl groups become larger. The t-butyl derivative (BQDtBEN) exhibited negligible fluorescence even in the presence
已经合成了几种双喹啉衍生物,N,N′-双(2-喹啉基甲基)-N,N′-二烷基乙基亚胺(烷基=甲基,乙基,异丙基和叔丁基),并且研究了它们对锌离子的荧光响应。这些化合物表现出锌离子诱导的荧光,并且其强度随着烷基基团的增大而降低。即使存在锌离子,叔丁基衍生物(BQDtBEN)的荧光也可以忽略不计。双喹啉衍生物(BQDMEN)的锌配合物的荧光强度高于TQEN(N,N,N',N'-四(2-喹啉基甲基)乙二胺)的荧光强度,表明TQEN-Zn配合物具有分子内由于四个喹啉环之间的能量转移和剩余的光致电子转移(PET)机制导致了猝灭机理。