2-(2-氨基苯基)苯并噻唑与四苯基卟啉及四苯基锌卟啉的荧光共振能量转移  

Study on the fluorescence resonance energy transfer of 2-(2-aminophenyl)benzothiazole with tetraphenyl porphyrin and tetraphenyl zinc porphyrin

作　　者：梅刚 易平贵[1] 李庆 张志于 彭文宇 李玉茹 徐合意 MEI Gang;YI Pinggui;LI Qing;ZHANG Zhiyu;PENG Wenyu;LI Yuru;XU Heyi(Key Laboratory of Theoretical Organic Chemistry and Functional Molecules of Ministry of Education,Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers,Hunan Province College Key Laboratory of QSAR/QSPR,School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan 411201,Hunan,China)

机构地区：[1]湖南科技大学化学化工学院,理论有机化学与功能分子教育部重点实验室,精细聚合物可控制备及功能应用湖南省重点实验室,分子构效关系湖南省普通高校重点实验室,湖南湘潭411201

出　　处：《化学研究》2021年第2期145-151,共7页Chemical Research

基　　金：国家自然科学基金(21172066);湖南省教育厅重点科研项目(17A065)。

摘　　要：采用紫外光谱和荧光光谱法研究了四氢呋喃溶液中2-(2-氨基苯基)苯并噻唑(APBT)与四苯基卟啉(TPP)、四苯基锌卟啉(ZnTPP)之间的相互作用。结果表明,APBT可作为能量供体分子分别与能量受体分子TPP或ZnTPP构成荧光共振能量转移(FRET)体系,APBT的作用将使TPP和ZnTPP的荧光增强。在此FRET体系中,APBT与TPP及ZnTPP作用的分子结合比分别为2∶1和3∶1,能量转移效率分别为0.1803和0.1375,能量转移临界距离分别为3.76和3.44 nm,供体-受体分子间距离分别为4.31和3.88 nm。The interactions between 2-(2-aminophenyl)benzothiazole(APBT)and 5,10,15,20-tetraphenylporphyrin(TPP)as well as tetraphenyl zinc porphyrin(ZnTPP)in tetrathydrofuran solution were studied by UV adsorption and fluorescence emission spectroscopy.The results show that the resonance energy transfer(FRET)can occur,in which APBT acts as energy donor and TPP or ZnTPP acts as energy acceptors.The energy transfer of APBT will enhance the fluorescence emission intensity of TPP or ZnTPP in these FRET systems.The results also indicate that the binding ratio of donor to acceptor is 2∶1 for APBT to TPP and 3∶1 for APBT to ZnTPP,with the energy transfer efficiency of 0.1803 and 0.1375,the critical distance of 3.76 and 3.44 nm,and the distance between donor and acceptor of 4.31 and 3.88 nm for APBT-TPP and APBT-ZnTPP,respectively.

关 键 词：卟啉 锌卟啉 2-(2-氨基苯基)苯并噻唑 荧光共振能量转移 

分 类 号：O641[理学—物理化学]