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dc.contributor.author Ogunlusi, G.O.
dc.contributor.author Ige, J.
dc.contributor.author Oyetunji, O.A.
dc.contributor.author Ojo, J.F.
dc.date.accessioned 2012-11-06T07:43:37Z
dc.date.available 2012-11-06T07:43:37Z
dc.date.issued 2009
dc.identifier.citation Ogunlusi, G.O. et al. (2009) Intermediate and ion-pair formation in the outer-sphere reactions between azido-pentacyanocobaltate(III) and iron(II) polypyridyl complexes in aqueous medium, Transition Metal Chemistry, Vol. 34 No. 5, pp. 483–491 en_US
dc.identifier.issn 0340-4285 (Print)
dc.identifier.issn 1572-901X (Online)
dc.identifier.uri http://hdl.handle.net/10311/1035
dc.description Symbols may not appear as they are in the original abstracts. en_US
dc.description.abstract The kinetics of the reactions between azidopentacyanocobaltate(III), Co(CN)5N3 3-, and iron(II) polypyridyl complexes, Fe(LL)3 2? (LL = bipy, phen), have been studied in both neutral and acidic aqueous solutions at I = 0.1 mol dm-3 NaCl. The reactions were carried out under pseudo-first-order conditions in which the concentration of Fe(LL)32+ was kept constant, and the second-order rate constants obtained for the reactions at 35 C were within the range of 0.156–0.219 dm3 mol-1 s-1 for LL = bipy and 0.090–0.118 dm3 mol-1 s-1 for LL = phen. Activation parameters were measured for these systems. The dependence of reaction rates on acid was studied in the range [H+] = 0.001–0.008 mol dm-3. The reaction in acid medium shows interesting kinetics. Two reactive species were identified in acid medium, namely, the protonated cobalt complex and the azido-bridged binuclear complex. The electron-transfer process is proposed to go by mixed outerand inner-sphere mechanisms in acid medium, in which electron transfer through the bridged inner-sphere complex (k5) is slower than through the outer-sphere path (k4). en_US
dc.language.iso en en_US
dc.publisher Springer Science+Business Media B.V., http://www.springer.com/chemistry/journal/11243 en_US
dc.subject Kinetics en_US
dc.subject Azidopentacyanocobaltate(III) en_US
dc.subject Iron(II) polypyridyl complexes en_US
dc.title Intermediate and ion-pair formation in the outer-sphere reactions between azido-pentacyanocobaltate(III) and iron(II) polypyridyl complexes in aqueous medium en_US
dc.type Published Article en_US
dc.link http://www.springerlink.com/content/h121m16l1127g185/fulltext.pdf en_US


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