Transfer and Adsorption. Surface Effects

Charge Transfer and Adsorption. Surface Effects 5.1. Introduction 

Surface effects in aqueous media always involve electric double layers characterized by more or less—depending on location— immobilized charges and by a firmly held layer of structured water exhibiting a permittivity considerably below that of its bulk value. There is an extensive literature on this subject see also the discussion in Pethig s article in this volume. 

The topic of surface CTC is basic to the theories of catalysis and is usually treated in that context. 

Surface CTC of chlorpromazine (CPZ) has been shown to be involved in hypothermia and sedation of mice in vitro surface adducts between chlorpromazine and collagen have been demonstrated, as well as with lignocain and with phenytoin. The existence of such CPZ surface adducts has been directly confirmed by electroreflectance measurements. 

If an acceptor is incorporated into a cationic micelle, then the rate of reactions involving hydrated electrons is increased by a factor of about 60 times that prevailing at outside negatively charged anionic micelles. 

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