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Jerome A. Imonigie Donal H. Macartney 《Journal of inclusion phenomena and macrocyclic chemistry》1993,15(2):195-203
The effects of -, -, dm-(heptakis(2,6-di-O-methyl)--) and -cyclodextrins (CD) on the kinetics of the electron-transfer reaction of the ferrocenemonocarboxylate anion (FCA–) with bis(pyridine-2,6-dicarboxylato)cobaltate(III) have been investigated in aqueous solution (0.20 M Na2HPO4, pH 9.2) at 25.0°C. Substantial decreases in the rate constants for the electron-transfer reactions were observed upon cyclodextrin inclusion of the reductant, due to an increase in the FCA0/– reduction potential and to the insulation of the reductant from oxidant. The inclusion stability constants for {FCA·CD}– were evaluated from the1H NMR and kinetic data, and the order of the stability constants was found to be -CDdm-CD-CD>-CD. 相似文献
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