摘要
合成了一种罗丹明B酰胺-氧杂杯芳烃衍生物1。在以Tris-HCl作为缓冲体系的乙腈溶液(pH7.0)中,化合物1本身无色且无荧光,加入Sb3+后,1的螺环结构打开,观察到显著的荧光增强和颜色变红。再加入Ca2+则导致1-Sb3+配合物的荧光猝灭及红色消失。在此条件下,其他共存离子没有明显响应。因此1-Sb3+配合物可作为检测Ca2+的超分子荧光和比色化学传感器。
A new fluorescence probe based on the rhodamine B amide-armed homotrioxacalix[3]arene （1） has been synthesized, and its Ca^2＋-selective chromogenic properties were investigated in acetonitrile Tris-HCl buffer （pH 7） solution by UV-Vis and fluorescence spectroscopies. Upon the addition of Sb^3＋ ion, the spirocyclic ring of 1 was opened and a significant fluorescence enhancement and colorimetric change was observed. However, addition of Ca^2＋ ion to the solution of 1-Sb^3＋ complex leads to a strong fluorescence quenching of the original 1-Sb^3＋ complex. The phenomenon exhibited a pronounced Ca^2＋ selective fluoroionophoric behavior over other coexistent metal ions and provided the ratiometric determination as well as naked-eye detection of Ca^2＋ ions.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2010年第5期1305-1309,共5页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(20767001)
贵州省优秀科技人才省长基金项目(200617)
贵州大学人才基金项目(2007039)资助
关键词
罗丹明B酰胺
芳烃
荧光及比色探针
Sb3+
CA2+
Rhodamine B
homotrioxacalix[3]arene
Fluorescence and colorimetric probe
Sb^3＋
Ca^2＋
作者简介
张文娟，女，1983年生，贵州大学化学与化工学院在读研究生e-mail：zhwj828@163．com
通讯联系人e-mail：sci．lmou@gzu．edu．cn
