Direct observation and structural characterization of the encounter complex in bimolecular electron transfers with photoactivated acceptors

R Rathore, SM Hubig, JK Kochi

Index: Rathore; Hubig; Kochi Journal of the American Chemical Society, 1997 , vol. 119, # 47 p. 11468 - 11480

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Citation Number: 65

Abstract

The encounter complex between photoexcited quinones Q* and various aromatic donors (ArH) is observed directly by time-resolved ps spectroscopy immediately before it undergoes electron transfer to the ion-radical pair [Q-, ArH+]. The encounter complex (EC) is spectrally characterized by distinctive (near IR) absorption bands, and its temporal evolution is established by quantitative kinetics analysis. The structural characterization of the 1: 1 ...