一种苯并咪唑衍生物的合成及对Mg^(2+)的识别研究  

Synthesis of a benzimidazole derivative and recognition of Mg^(2+)

作　　者：唐宏伟 王鑫[1] 王超[1] 钟克利[1] 汤立军[1] 边延江[1] TANG Hong-wei;WANG Xin;WANG Chao;ZHONG Ke-li;TANG Li-jun;BIAN Yan-jiang(College of Chemistry and Materials Engineering,Bohai University,Jinzhou 121013,China)

机构地区：[1]渤海大学化学与材料工程学院,辽宁锦州121013

出　　处：《化学研究与应用》2021年第4期659-663,共5页Chemical Research and Application

基　　金：国家自然科学基金项目(21878023,U1608222)资助;辽宁特聘教授支持计划项目资助。

摘　　要：本文利用2-氨基苯并咪唑和5-溴水杨醛反应制得一种具有聚集荧光增强性质的探针L。探针L可以在DMSO体系下对镁离子具有很好的识别效果,并且探针L随着水含量的升高荧光强度在逐渐增强,在水含量达到90%表现出明显的荧光增强现象且发射波长发生明显的红移,在495nm处出现最强发射峰,检测限达到3.49×10^(-5) M,能够有效地检测Mg^(2+),同时探针L的AIE性质具有了成为发光材料的潜能。In this paper,the reaction of 2-aminobenzimidazole and 5-bromosalicylic aldehyde was used to prepare a probe L with an aggregation-induced emission property.Probe L could had a good recognition effect on magnesium ions under the DMSO system and with the increasing of water content,the fluorescence intensity of the probe L gradually increased.When the water content reached 90%,the probe L showed obviously fluorescence enhancement and the emission wavelength had a significant red shift.The probe L had the strongest emission peak appeared at 495nm,and the detection limit reached 3.49×10^(-5) M.The probe L could detect Mg^(2+)effectively.At the same time,the probe L had the properties of AIE and had the potential to become a luminescent material.

关 键 词：2-氨基苯并咪唑 5-溴水杨醛 镁离子 荧光探针 聚集诱导发光 

分 类 号：O656.9[理学—分析化学]