Role of metals in enzymatic reactions. Part 2.—Kinetics of complex formation in model systems involving manganese(II) and 8-hydroxyquinoline
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Transactions of the Faraday Society
- Vol. 66, 1176-1184
- https://doi.org/10.1039/tf9706601176
Abstract
The temperature-jump relaxation method has been used to measure the kinetics of formation and dissociation of the 1 : 1 complex between manganese(II) and 8-hydroxyquinoline (oxine) and of the ternary complexes between oxine and the manganese(II)-nitrilotriacetate, -uramil NN diacetate, -adenosine-5′-triphosphate and -polytriphosphate complexes. In all cases the data are consistent with a two-path mechanism involving the addition to the manganese species of the oxine anion or the oxine molecule. The first ligand has comparatively little influence on the rate at which manganese reacts with and dissociates from the second ligand. The observed enzymatic behaviour of manganese(II), magnesium and calcium is discussed in the light of the results.Keywords
This publication has 0 references indexed in Scilit: