摘要
设计并合成了2-(2′-羟基-3′-甲氧基苯基)-5,6-二硝基苯并咪唑化合物(1),通过X射线单晶衍射研究了该化合物的固态结构.利用紫外-可见光谱技术研究了其对阴离子的识别,发现化合物1能够在DMSO中对AcO-,H2PO4-,OH-的3种离子进行有效识别,同时溶液由原来的黄色变成红色,实现裸眼检测.
The design and synthesis of functionalized receptors for the development of potential chemosensors is an increasingly topical field in anion recognition chemistry. The incorporation of chromophores into the receptor, which are sensitive to the interactions between the host and guest molecules, has recently gained considerable attention due to their low detection limit. In this article a benzimidazole-based anion receptor 1 was designed and synthesized. The structure of analysis. Anion binding studies carried out compound 1 was confirmed through single crystal by using 1H NMR and UV-Visible reveal that this X-ray diffraction compound exhibited the recognition towards AcO^- , H2PO4^- , OH^- in DMSO solutions. Receptor 1 showed dramatic color changes from light-yellow to red in the presence of AcO^-, H2PO4^-, OH^-. The intermolecular interactions between compound 1 and anions could be easily monitored by anion complexation-induced changes in UV-Vis absorption and by the ＂naked eye＂.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第1期83-86,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20371028)
天津市自然科学基金(批准号:023605811)资助
