基于杯[4]芳烃的银离子荧光探针的合成及性能  

Synthesis and Performances of a New Ag^+-selective Fluorescent Sensor Based on Calix[4]arene

作　　者：王炜[1] 何松[1] 陆燕[1] 曾宪顺[1] 

机构地区：[1]天津理工大学材料科学与工程学院显示材料与光电器件省部共建教育部重点实验室,天津300384

出　　处：《高等学校化学学报》2012年第11期2470-2475,共6页Chemical Journal of Chinese Universities

基　　金：教育部新世纪优秀人才支持计划(批准号:NCET-09-0894);国家自然科学基金(批准号:20972111;21272172;21074093;21004044);南开大学元素有机化学国家重点实验室开放基金(批准号:1103)资助

摘　　要：合成了25,27-二羟基-26,28-二{3-[N-(2-萘基)-2-硫代乙酰胺]丙氧基}-5,11,17,23-四叔丁基杯[4]芳烃(2),并利用荧光光谱考察了其在乙醇-水混合溶液中对Ag+的光谱选择性.结果表明,含有S2O2结合位点的探针分子2对Ag+具有良好的选择性.通过荧光光谱连续滴定测得探针分子2-Ag+体系的猝灭常数为3.39×103L/mol,探针分子对Ag+的检出限可达2.34!10-7mol/L.在实际的Ag+检测中,探针分子2具有一定的应用前景.A new calix[4]arene derivative 2 with naphthalene fluorophores at the lower rim was synthesized. The chemosensing behavior of the host compound 2 for metal ions was investigated by fluorescence spectra. The results revealed that chemosensor 2 containing S2O2 atoms as soft donors had a good selectivity towards Ag＋ ion. It exhibits high sensitivity toward Ag＋ over a wide range of metal ions in C2H5OH/H2O（3：2, volume ratio）. The fluorescence quenching behavior was observed under binding of the Ag＋ with a detection limit of 2.34×10-7 mol/L.

关 键 词：荧光光谱 化学传感器 杯[4]芳烃 Ag+ 萘 硫 

分 类 号：O626[理学—有机化学]