两种咔唑基-吡啶-N-氧化物内盐荧光极性探针研究  

Study on Fluorescence Polarity Probes of Two Carbazole Pyridine-N-Oxide Internal Salts

作　　者：梁文娟[1] 王慧敏 白云峰[1] 冯锋[1] LIANG Wen-juan;WANG Hui-min;BAI Yun-feng;FENG Feng(School of Chemistry and Chemical Engineering,Shanxi Datong University,Datong 037009,China)

机构地区：[1]山西大同大学化学与化工学院,山西大同037009

出　　处：《光谱学与光谱分析》2024年第6期1600-1606,共7页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(21375083);山西大同大学博士启动基金项目(2016-42-11)资助。

摘　　要：合成了4-(9H-咔唑-9-基)吡啶1-氧化物(CPNO)和4-(4-(9H-咔唑-9-基)苯基)吡啶1-氧化物(CPPNO)两种咔唑基-吡啶-N-氧化物内盐,测定了它们在不同溶剂中的紫外-可见吸收和荧光光谱,均表现出对溶剂极性较好的敏感性。计算表明,两个化合物都具有较大的激发态偶极矩,是化合物溶剂极性敏感性的原因。研究为开发新型的荧光极性探针提供了一种新思路。This article synthesized two carbazole pyridine N-oxide internal salts,4-(9H carbazole 9-yl)pyridine 1-oxide(CPNO)and 4-(4-(9H carbazole 9-yl)phenyl)pyridine 1-oxide(CPPNO).It measured their UV visible absorption and fluorescence spectra in different solvents,showing good sensitivity to solvent polarity.The calculation shows that both compounds have a sizeable excited state dipole moment,which is the reason for the solvent polarity sensitivity of the compound.The research results provide a new approach for developing novel fluorescent polarity probes.

关 键 词：咔唑基 吡啶 N氧化物内盐 溶剂效应 荧光极性探针 

分 类 号：O651[理学—分析化学]