一个氢氧根代替了酉分的 Schiff 底 1,为 Zn2+ 的察觉用作传感器,被综合并且调查。而没有荧光排放被检测 1 是否跳了到另外的金属离子, 1 什么时候在 acetonitrile 跳了到Zn2+,被发现强壮的荧光排出物被观察(Fe2+,Co2+,Ni2+,Cu2+,Cd2+,Hg2+,Mg2+,Pb2+,Ca2+,Ba2+,Sr2+)除了Mg2+,弱荧光排出物在一样为被检测调节。当 1 在金属离子的不同混合物与 Zn2+ 执行了滴定时,比赛实验证明没有明显的干扰在它的荧光被观察。理解在哪儿的地点 Zn2+coordinated 到 ligand 和绑定的机制,三个另外的氢氧根代替了酉分的 Schiff 库 24 被综合,他们有 Zn2+were 的有约束力的反应也调查了。
A hydroxyl substituted phenolic Schiff base 1, used as sensor for detection of Zn^2+, was synthesized and investigated. It was found that a strong fluorescence emission was observed when 1 bound to Zn^2+ in acetonitrile, whereas no fluorescence emission was detected when 1 bound to other metal ions (Fe^2+, Co^2+, Ni^2+, Cu^2+, Cd^2+, Hg^2+, Mg^2+, Pb^2+, Ca^2+, Ba^2+, Sr^2+) except for Mg^2+, 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 Zn^2+ in the different mixtures of metal ions. To understand the site where Zn^2+ 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 Zn^2+were also investigated.