Design and Synthesis of a Selective Chemosensor for Zn2+

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2006,（12）
• 页码范围: 1800-1803
• 页数: 4页
• 语种: 英文

摘要

A hydroxyl substituted phenolic Schiff base 1, used as sensor for detection of Zn2+, was synthesized and investigated. It was found that a strong fluorescence emission was observed when 1 bound to Zn2+ in acetonitrile,whereas no fluorescence emission was detected when 1 bound to other metal ions (Fe2+, Co2+, Ni2+, Cu2+, Cd2+,Hg2+, Mg2+, Pb2+, Ca2+, Ba2+, Sr2+) except for Mg2+, for which a weak fluorescence emission was detected in the same condition. Competition experiment showed that no obvious interference was observed in its fluorescence while 1 performed the titration with Zn2+ in the different mixtures of metal ions. To understand the site where Zn2+ coordinated to the ligand and the mechanism of binding, three other hydroxyl substituted phenolic Schiff bases 2-4 were synthesized and their binding reactions with Zn2+ were also investigated.