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谷氨酸桥连芘基、大环多胺荧光探针对Cu2+的选择性识别初探

发表时间:2010-09-15  浏览量:1597  下载量:516
全部作者: 黄宇,陈善勇,张骥,谭新禹,卢乔森,张愉,余孝其
作者单位: 四川大学化学学院,绿色化学与技术教育部重点实验室
摘 要: 在合成大环多胺(1,4,7,10-四氮杂环十四烷)衍生物4中,大环多胺部分通过一个L-型谷氨酸以酰胺键和芘胺连接。在甲醇和水的混合体系中初步研究了不同金属阳离子对化合物的荧光淬灭效果。结果显示:化合物4显示出了对Cu2+的选择性识别和结合能力,对Cu2+的结合常数高达2.0×106 mol/L.
关 键 词: 应用化学;大环多胺;铜离子;荧光探针
Title: Primary investigation on selective identification of Cu2+ by pyrene-appended cyclen
Author: HUANG Yu, CHEN Shanyong, ZHANG Ji, TAN Xinyu, LU Qiaosen, ZHANG Yu, YU Xiaoqi
Organization: College of Chemistry, Key Laboratory of Green Chemistry and Technology, Ministry of Education, Sichuan University
Abstract: A new macrocyclic polyamine (1,4,7,10-tetrazacyclododecane) derivative 4 was prepared. The macrocyclic polyamine moiety was bridged by L-glutamic acid via amino bond and pyrene. Fluorescence quench experiments were carried out to compare the fluorescence selectivity ability of different metal ions in methanol/water mixture. The results indicated that compound 4 exhibited excellent selectivity and binding ability towards Cu2+. The association constant (Kassoc) of 4 for Cu2+ was 2.0�06 mol/L.
Key words: applied chemistry; cyclen; copper ion; fluorescent probe
发表期数: 2010年9月第17期
引用格式: 黄宇,陈善勇,张骥,等. 谷氨酸桥连芘基、大环多胺荧光探针对Cu2+的选择性识别初探[J]. 中国科技论文在线精品论文,2010,3(17):1737-1741.
 
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