Quantitative Evaluation of Lewis Acidity of Metal Ions Derived from theg Values of ESR Spectra of Superoxide: Metal Ion Complexes in Relation to the Promoting Effects in Electron Transfer Reactions

2000 ◽  
Vol 6 (24) ◽  
pp. 4532-4535 ◽  
Author(s):  
Shunichi Fukuzumi ◽  
Kei Ohkubo
Keyword(s):  
Electron Transfer ◽  
Metal Ions ◽  
Quantitative Evaluation ◽  
Metal Ion ◽  
Esr Spectra ◽  
Transfer Reactions ◽  
Lewis Acidity ◽  
Metal Ion Complexes ◽  
Electron Transfer Reactions

scholarly journals Catalytic control of electron-transfer processes

2003 ◽  
Vol 75 (5) ◽  
pp. 577-587 ◽  
Author(s):  
Shunichi Fukuzumi
Keyword(s):  
Electron Transfer ◽  
Metal Ions ◽  
Metal Ion ◽  
Photochemical Reactions ◽  
Transfer Reactions ◽  
Intramolecular Electron Transfer ◽  
Radical Anions ◽  
Electron Transfer Reactions ◽  
Transfer Processes ◽  
Electron Transfer Processes

Catalytic control of electron-transfer processes is described for a number of photoinduced and thermal electron-transfer reactions, including back electron transfer in the charge-separated state of artificial photosynthetic compounds. The intermolecular and intramolecular electron-transfer processes are accelerated by complexation of radical anions, produced in the electron transfer, with metal ions that act as Lewis acids. Quantitative measures to determine the Lewis acidity of a variety of metal ions are given in relation with the promoting effects of metal ions in the electron-transfer reactions. The mechanistic viability of metal ion catalysis in electron-transfer reactions is demonstrated by a variety of examples of both thermal and photochemical reactions that involve metal ion-promoted electron-transfer processes as the rate-determining steps, which are made possible to proceed by complexation of radical anions with metal ions.

scholarly journals Metal ion-coupled electron-transfer reactions of metal-oxygen complexes

2020 ◽  
Vol 410 ◽  
pp. 213219 ◽  
Author(s):  
Tarali Devi ◽  
Yong-Min Lee ◽  
Wonwoo Nam ◽  
Shunichi Fukuzumi
Keyword(s):  
Electron Transfer ◽  
Metal Ion ◽  
Transfer Reactions ◽  
Electron Transfer Reactions ◽  
Oxygen Complexes
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