具有苯并-15-冠-5的9-芴甲酰胺衍生物的异常荧光响应。

Anomalous fluorescent responses of 9-fluorenecarboxamide derivatives possessing benzo-15-crown-5.

作者信息

Hama Hiroya, Morozumi Tatsuya, Nakamura Hiroshi

机构信息

Division of Environmental Material Science, Graduate School of Environmental Science, Hokkaido University, Sapporo, Japan.

出版信息

Anal Sci. 2007 Nov;23(11):1257-9. doi: 10.2116/analsci.23.1257.

DOI:10.2116/analsci.23.1257

PMID:17998741

Abstract

A new fluorescent ionophore for alkaline earth metal ions, 4'-(9-fluorenecarboxamido)benzo-15-crown-5 (3), was synthesized; its photochemical behavior was investigated using UV, fluorescence, (1)H NMR, and (13)C NMR spectrometry. In the absence of a metal ion, the fluorene moiety showed weak fluorescence emission (fluorescence "Off" state). However, complexation with metal ions greatly enhanced the fluorescence intensity (fluorescence "On" state).

摘要

合成了一种用于碱土金属离子的新型荧光离子载体4'-(9-芴甲酰胺基)苯并-15-冠-5(3)；采用紫外光谱、荧光光谱、¹H NMR和¹³C NMR光谱对其光化学行为进行了研究。在没有金属离子的情况下，芴部分显示出较弱的荧光发射(荧光“关闭”状态)。然而，与金属离子络合大大增强了荧光强度(荧光“开启”状态)。