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合成了一种新的C60-卤代苯吡咯烷衍生物1,以1HNMR、13CNMR、FT-IR、FAB-MS和UV进行了结构表征.测量其在甲苯溶液中的荧光发射光谱,并在此最大发射波长下测得其荧光寿命为5.26ns,而C60在室温的荧光寿命大约是1.2ns。说明C60-卤代苯吡咯烷(1)在激光激发下发生了加成基团苯环与母体C60之间的分子内能量转移和电荷传递,有可能产生长寿命的电荷分离态。理论计算化合物1的电子结构和前线轨道进一步验证了上述结果。
A novel C60-halophenyrrolidine derivative 1 was synthesized and characterized by 1HNMR, 13CNMR, FT-IR, FAB-MS and UV spectroscopy. The fluorescence emission spectrum of the compound was measured in toluene solution, The fluorescence lifetime measured at the maximum emission wavelength was 5.26 ns, whereas the fluorescence lifetime of the C60 at room temperature was about 1.2 ns. It shows that the C60-halophenyrrolidine (1) undergoes the intramolecular energy transfer and charge transfer between the addition group benzene ring and the parent C60 under the laser excitation, and it is possible to produce a long-lived charge-separated state. Theoretical calculations of the electronic structure of compound 1 and frontier orbit further verify the above results.