Kinetics of Ternary Complex-Formation Between Cobalt (II)Species and 2,2'-Bipyridine - Parametrization of Bond-Ligand Effects

Hague, D.N. and White, A.R. (1995) Kinetics of Ternary Complex-Formation Between Cobalt (II)Species and 2,2'-Bipyridine - Parametrization of Bond-Ligand Effects. Journal of the Chemical Society-Dalton Transactions (3). pp. 449-453. ISSN 0300-9246. (The full text of this publication is not available from this repository)

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Abstract

Temperature-jump and stopped flow relaxation methods have been used to measure rate constants (and in some cases activation enthalpies and entropies) for the formation and dissociation of the 1:1 complex between cobalt(II) and 2,2'-bipyridine (bipy). and of ternary complexes between bipy and cobalt(II) -polytriphosphate, nitrilotriacetate, -ethylenediamine-N,N-diacetate, -ethylenediamine-N,N'-diacetate, -triethylenetetramine and - 2,2',2''-triaminotriethylamine complexes. The rate constants k(f) for the three series involving, respectively, bipy, N,N-dimethyl (p-pyridin-2-ylazo)aniline and the dianion from 5-nitrosalicylic acid have been compared. The data are found to fit the simple parametrization scheme recently developed for analogous reactions of nickel(ii) in which the terms are linked directly to structural features of the reactants. The relative behaviour of the two metals is discussed.

Item Type: Article
Uncontrolled keywords: TRANSITION-METAL IONS; ENZYMATIC REACTIONS; WATER-EXCHANGE; O-17 NMR; NICKEL(II)
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > School of Biosciences
Depositing User: P. Ogbuji
Date Deposited: 30 May 2009 09:29
Last Modified: 13 Jun 2012 08:13
Resource URI: http://kar.kent.ac.uk/id/eprint/19580 (The current URI for this page, for reference purposes)
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