采用1-吡啶基-2-芳基乙烯精细调节450nm以下的固体荧光发射波长  

Fine Adjusting the Solid-state Fluorescence Emission Wavelength Below the Range of 450 nm via Using 1-pyridyl-2-arylethene

作　　者：曹朝暾[1] 王琳艳 CAO Chaotun;WANG Linyan(School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;不详)

机构地区：[1]湖南科技大学化学化工学院,湖南湘潭411201 [2]湖南科技大学材料科学与工程学院,湖南湘潭411201

出　　处：《湖南科技大学学报（自然科学版）》2022年第4期104-109,共6页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：湖南省自然科学基金资助项目(2020JJ5155);湖南省教育厅资助项目(20B224;18C0327);国家自然科学基金资助项(21672058)。

摘　　要：为了比较吡啶和噻吩对1-吡啶基/噻吩基-2-芳基乙烯类衍生物固态荧光发射波长Em的影响,以及实现该类化合物Em的精细调节,文章合成了36种1-吡啶基-2-芳基乙烯衍生物(PyAEY),并对其固态荧光发射波长Em进行测定.将PyAEY的Em与1-噻吩基-2-芳基乙烯衍生物(XAEY)的Em进行比较,观察到:(1)由于吡啶基是缺电子芳基,噻吩基是富电子芳基,在PyAEY和XAEY两者具有相同取代基Y的情况下,PyAEY的固态Em比相应的XAEY减少30 nm以上;(2)通过选择不同的吡啶基(2-Py,3-Py或4-Py)和Y基团,可以得到波长Em在370~450 nm范围内具有连续发射波长的系列PyAEY化合物;(3)结合PyAEY和XAEY这2类二芳基乙烯化合物,可以得到连续发射波长在370~600 nm范围内的一系列荧光化合物.To compare the effects of pyridyl and thienyl on the solid-state fluorescence emission wavelengths Em of 1-pyridyl/thienyl-2-arylethylene derivatives and realize the fine adjustment of Em of such derivatives,thirty-six 1-pyridyl-2-arylethylene derivatives(PyAEY)are synthesized and their solid-state fluorescence emission wavelengths Em are determined.The Em of PyAEYiscompared with that of 1-thienyl-2-arylethylene derivatives(XAEY).It finds:(1)Sincepyridyl is electron-poor aryl and thienyl is electron-rich aryl,the solid-state Em of PyAEY is shorter over 30 nm than that of the corresponding XAEY,in case of both having a same Y group.(2)One can obtain a series of PyAEY compounds with continuous wavelengths Em in range of 370~450 nm via selecting different pyridyl(2-Py,3-Py and 4-Py)and Y groups,and(3)Combinning stilbene-like compounds involving PyAEY and XAEY,one can obtain a series of compounds with continuous emission wavelength in range of 370~600 nm.

关 键 词：吡啶基-芳基乙烯 固体荧光发射波长 精细调节 缺电子芳基 富电子芳基 

分 类 号：O621.1[理学—有机化学]