| 초록 |
Photoinduced electron transfer (PeT) has found a broad range of photonic utility, such as the natural photosynthesis, where PeT between chlorophyll and quinone serves as the key role. PeT has also been employed to create molecular probes and photoredox catalysts because radical species produced after PeT can potentially modulate photoluminescence and redox mediation. We have investigated PeT in intra- and intermolecular electron-donor and -acceptor pairs in order to understand the action of PeT in the operation of phosphorescent zinc sensors and molecular photoelectrocatalytic chromism. We performed combined mechanistic studies, including transient absorption spectroscopy, stopped-flow absorption spectroscopy, electrochemical and EPR measurements, and computational investigations based on TD-DFT. The studies allowed for assessment of the molecular factors that determine PeT, and, eventually, established important principles to improving the performance of sensing and photochromism. |
