Kinetics of aquation of [Co(ODA)(H₂O)₃] induced by Fe(III)

• Autorzy: Dariusz Wyrzykowski , Dagmara Jacewicz , Joanna Pranczk , Natalia Sobolewska , Aleksandra Tesmar , Lech Chmurzyński
• Języki publikacji: EN

Abstrakty

EN

The 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.

EN

Słowa kluczowe

EN

cobalt(II) complex; oxydiacetate; kinetics of aquation reaction

• Czasopismo: Open Chemistry
• Rocznik: 2015
• Tom: 13
• Numer: 1

Daty

zaakceptowano

2014-07-05

otrzymano

2014-09-23

online

2014-11-17

Twórcy

autor

Dariusz Wyrzykowski

• Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland

autor

Dagmara Jacewicz

• Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland

autor

Joanna Pranczk

• Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland

autor

Natalia Sobolewska

• Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland

autor

Aleksandra Tesmar

• Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland

autor

Lech Chmurzyński

• Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Gdańsk, 80-308 Gdańsk, Poland

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Identyfikatory

DOI

10.1515/chem-2015-0027