哌嗪修饰的2,2'∶6',2''-三联吡啶衍生物的合成及光物理性质  

Synthesis and Photophysical Properties of 2,2':6',2'-Terpyridine Derivatives Modified with Piperazine Moiety

作　　者：柳林[1] 陈学刚[1] Liu Lin;Chen Xuegan(School of Polymer Science and Engineering,Qingdao University of Science and Technology,Key Laboratory of Rubber-plastics of Ministry of Education,Qingdao 266042,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《山东化工》2018年第6期1-2,5,共3页Shandong Chemical Industry

基　　金：国家自然科学基金资助项目(20804022);山东省自然科学基金资助(ZR2011BM001)

摘　　要：设计合成了一系列以哌嗪为电子给体(electron donor),2,2'∶6',2'-三联吡啶为电子受体(electron acceptor)的含有电子给体-受体结构(D-A)的化合物MPTPY、EPTPY和PPTPY。通过核磁共振对其结构进行了表征,并详细研究了其紫外-可见吸收光谱和荧光发射光谱。结果表明,MPTPY在294 nm、340 nm附近有强吸收峰,而EPTPY及PPTPY的吸收峰分别在298 nm、341 nm及300 nm、344 nm附近,三者在室温下荧光发射峰分别位于441 nm、432 nm和445 nm附近。这类含D-A结构分子的光谱性质表现出对溶剂极性的依赖性,相对于其在甲苯中的荧光发射峰,MPTPY和EPTPY在甲醇中的荧光发射峰分别红移了94 nm和79 nm。A serials of electron donor-acceptor-based(D-A)compounds MPTPY,EPTPY and PPTPY with piperazine derivatives as electron donor and 2,2'∶6',2''-terpyridine as electron acceptor were prepared.The structures of these compounds were characterized by 1H-NMR,and the photophysical properties were characterized by UV spectra and fluorescence emission spectra.UV spectra shows that the absorption maximums of MPTPY are at 294 nm and 340 nm,while EPTPY and PPTPY are at 298 nm,341 nm and 300 nm,344 nm respectively.The fluorescence emission peaks of these compounds are around 441 nm,432 nm and 445 nm.The spectra of these compounds also strongly depend on the solvent polarity resulted from their D-A structures.The emission maximum of MPTPY and EPTPY in methanol respectively red shifted 94 nm and 79 nm with respect to in toluene respectively.

关 键 词：哌嗪 三联吡啶 电子给体-受体 光物理性质 

分 类 号：O641.4[理学—物理化学]