|
|||||
|
|
Preliminary study on dual fluorescence behavior of porphyrin |
|
| Authors: | |
| Institution: | 1. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China 2. Technique Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China |
| Abstract: | Dual fluorescence behavior of zinc 5,10,15,20-tetra(p-bromophenyl)porphine (ZnTPPBr) has been studied using absorption and fluorescence spectroscopy. Bimolecular fluorescence quenching reactions between ZnTPPBr and fullerene/ferrocene indicate that quenching behavior of S2 state may be partially transferred and preserved in S1 state so as to finally influence S1 state. The result is similar to the phenomenon that electron spin polarization of radical or triplet species produced in the precursor can be transferred and preserved in the products in CIDEP. Our work provides a novel method for investigating upper excited state with a short lifetime and low fluores-cence quantum yields. |
| Keywords: | dual fluorescence behavior bimolecular fluorescence quenching transferred and preserved spin polarization CIDEP |
| 本文献已被 CNKI 万方数据 SpringerLink 等数据库收录！ | |