喹啉类席夫碱锌离子荧光探针的合成及性能  

Synthesis and Properties of Fluorescent Probe for Detection of Zn^(2+) Based on a Schiff base of Quinoline

作　　者：苏策[1] 赵少丹[1] 王鹏[1] 李冠斌[1] 

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050

出　　处：《精细化工》2016年第11期1207-1211,共5页Fine Chemicals

基　　金：国家自然科学基金(21462025)~~

摘　　要：以喹啉-8-甲醛和苯甲酰肼为原料,合成了具有席夫碱结构的Zn^(2+)荧光探针N-(喹啉-8-亚甲基)苯甲酰肼(L),用FTIR、NMR对探针结构进行了表征,并对其检测Zn^(2+)的机理进行了考察。结果表明:化合物L对Zn^(2+)有优良的选择性,最大荧光波长为523 nm,对Zn^(2+)检测限为4.1×10-8mol/L。化合物L与Zn^(2+)形成了物质的量比为1∶1的配合物(L-Zn),其机理为三齿的配体通过喹啉氮原子、席夫碱亚胺氮原子和酰胺羰基氧原子与Zn^(2+)配位,形成稳定的稠环配合物。A fluorescent probe,namely N-（ quinoline-8-methylene） benzoyl hydrazide（ L）,based on the Schiff basewas synthesized by reacting quinoline-8-carboxaldehydeand benzoylhydrazine. Its structure was confirmed by IR,NMR and the optical properties were investigated. The mechanism of recognition to Zn2＋was discussed. The probe displayed excellent fluorescent selectivity to Zn2＋.Meanwhile,it had the strongest emission wavelength at 523 nm and gave a calculated detection limit of4. 1 × 10- 8mol / L. The result showed that the probe coordinated with Zn2＋（ mole ratio of 1∶1） to form a coordination complex（ L-Zn）. The tridentate ligand bynitrogen atom from quinoline, imine nitrogenatom from Schiff base and oxygen atom from amide carbonyl was coordinated with Zn2＋toyield a stable fused compound.

关 键 词：荧光探针 喹啉 Zn2+ 席夫碱 功能材料 

分 类 号：O622.6[理学—有机化学]