摘要
设计合成了一种新的C60-蒽吡咯烷衍生物1。以1HNMR,13C NMR,FTIR,UV-Vis和FAB MS进行了结构表征,测量其在甲苯溶液中的紫外光谱、荧光发射光谱,并在最大发射波长下测得其荧光寿命为5.44ns,利用皮秒激光光源,采用Z扫描技术测定了分子1的三阶非线性超极化率γ(3)为6.60×10-33esu,大于C60的文献报道值7.5×10-34esu。说明C60-蒽吡咯烷衍生物1在激光激发下发生了加成基团蒽与母体C60之间的分子内能量转移和电荷传递。通过理论化学计算进一步验证了电荷转移的发生。
The synthesis of a fulleropyrrolidine containing anthracene dyad（ compound 1 ）was reported. The molecular structure was identified and characterized by ^1H NMR,^13C NMR, FTIR, UVVis and FAB MS, respectively. The fluorescence emission and UV spectra of compound 1 in toluene were measured. The lifetime of fluorescence was 5.44 ns at maximum emission wavelength. The third-order nonlinear optical hyperpolarizability γ^（3） was obtained by Z scan technique with picosecond laser. It was found that the 3/（3） value of compound 1（6. 60 × 10 ^-33 esu） was higher than that of C60 （7. 5 × 10^-34 esu, literature data） indicating that the molecular internal energy shift and charge transfer had taken place between the anthracene group and the C60 parent body. Theoretical calculation further verified the occurrence of charge transfer.
出处
《分析测试学报》
CAS
CSCD
北大核心
2008年第6期585-589,共5页
Journal of Instrumental Analysis
基金
广东省自然科学基金资助项目(07300884)
广东省教育部产学研结合项目(2007B090400020)
广东工业大学博士启动基金资助项目(073012)
关键词
C60-蒽吡咯烷衍生物
荧光寿命
三阶非线性超极化率
理论计算
fulleropyrrolidine
fluorescence lifetime
third-order nonlinear optical hyperpolarizability
theoretical calculation
