Kinetics of aquation of [Co(ODA)(H2O)3] induced by Fe(III)
Dariusz Wyrzykowski , Dagmara Jacewicz , Joanna Pranczk , Natalia Sobolewska , Aleksandra Tesmar , Lech Chmurzyński
AbstractThe aquation reaction of the oxydiacetate cobalt(II) complex, namely [Co(ODA)(H2O)2]•H2O (ODA = oxydiacetate), induced by the Fe(III) ions as the promoter has been studied spectrophotometrically (UV-Vis). Kinetic measurements were carried out in the 283.15 - 303.15 K temperature range and at a constant ionic strength of 1.0 M (NaNO3). The observed rate constants were computed by a program based on global analysis. Furthermore, the reaction activation parameters were determined using the Arrhenius and Eyring equations. The changes in the enthalpy, entropy as well as activation energy barriers were calculated in the range of 0.00125 M – 0.125 M of the Fe(III) ion concentration. Based on kinetic data a mechanism for the aquation of the [Co(ODA)(H2O)3] complex has been proposed.
|Journal series||Open Chemistry, ISSN , e-ISSN 2391-5420, (B 14 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||cobalt(II) complex, oxydiacetate, kinetics of aquation reaction|
|License||Journal (articles only); published final; ; with publication|
|Score|| = 14.0, 03-12-2017, ArticleFromJournal|
= 14.0, 03-12-2017, ArticleFromJournal
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