期刊
TETRAHEDRON LETTERS
卷 51, 期 1, 页码 181-184出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2009.10.118
关键词
Fluorene; Nitro group; Solvatochromism; Fluorescence quantum yield
Functional pi-extended fluorene derivatives, 2,7-di(p-substituted-phenyl)fluorenes containing different functional groups such as hydrogen, trimethylsilyl (TMS), methoxycarbonyl, cyano, and nitro groups, were synthesized. Except for the nitro group, the resulting compounds exhibited extremely high fluorescence quantum yields (Phi(F) >0.85 in chloroform). The diphenylfluorene containing nitro groups have higher fluorescence quantum yield (Phi(F) = 0.31 in N,N'-dimethyl-formamide) than other nitro-group-containing fluorophores which were previously reported (Phi(F) <0.1). Furthermore, this compound exhibited large Stokes' shift with green to orange emission and unique on-off behavior of the emission by solvents. (C) 2009 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据