ORIENTATIONAL EFFECTS OF BETA-CYCLODEXTRINS ON ELECTRON-TRANSFER BETWEEN METAL-COMPLEXES IN SOLUTION

Citation
Md. Johnson et Vc. Reinsborough, ORIENTATIONAL EFFECTS OF BETA-CYCLODEXTRINS ON ELECTRON-TRANSFER BETWEEN METAL-COMPLEXES IN SOLUTION, Journal of solution chemistry, 23(2), 1994, pp. 185-193
Citations number
22
Categorie Soggetti
Chemistry Physical
ISSN journal
00959782
Volume
23
Issue
2
Year of publication
1994
Pages
185 - 193
Database
ISI
SICI code
0095-9782(1994)23:2<185:OEOBOE>2.0.ZU;2-Z
Abstract
The kinetics of the electron transfer reaction between pentammine-(4,4 'bipyridine)ruthenium(II) and ohexyldiamine-N,N,N',N'-tetraacetatocoba ltate(III) has been studied in unsubstituted and substituted beta-cycl odextrin solutions. The increased ion-pairing and the decreased electr on transfer rates that result when the ruthenium complex are encapsula ted by cyclodextrins are interpreted in terms of hydrogen bonding betw een cyclodextrin and the metal complexes markedly stabilizing the ion pair.