Electron Ping Pong: Manipulation with Electrons by Photoinduced Electron Transfer

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Electron Ping Pong: Manipulation with Electrons by Photoinduced Electron Transfer

Tomáš Slanina, Institute of Organic Chemistry and Biochemistry, Czech Republic

Electronically excited molecules have simultaneously higher reduction and oxidation potential which enables to transfer electrons between partners that would not otherwise react in the ground state. The formed charge-separated state is often metastable and a back electron transfer often leads to its rapid quenching. If a photoinduced electron transfer is coupled with a fast follow-up process that stabilizes the formed radical ions, the charge-separated state becomes thermodynamically stable. 

We find methods to stabilize charge separation in mixtures of organic molecules that are capable of single- and double-electron redox processes and investigate the mechanisms of photoinduced redox processes.