Construction of a Rigid Zn Porphyrin−C<sub>60</sub> Dyad within Dendritic Structure: Dendrimer Effect on Singlet Energy Transfer
作者:Masatoshi Kozaki、Kogen Akita、Shuichi Suzuki、Keiji Okada
DOI:10.1021/ol071296h
日期:2007.8.1
A snowflake-shaped Zn porphyrin dendrimer with a C-60 terminal was prepared. Covalent linkage of the C-60 unit results in significant quenching of the Zn porphyrin fluorescence mainly due to energy transfer from the Zn porphyrin core to the C-60 terminal. Comparison of the energy-transfer efficiency with similar dendrons indicates that the dendritic structure considerably delays the energy-transfer rate.