Inner-sphere Oxidation of Acetato- diaqua-(2-hydroxobenzy- lidene)- 5- phenylthiazol- 2- amino Cobalt (II) Complex by N-bromosuccinimide - Egyptian Knowledge Bank

1137

Inner-sphere Oxidation of Acetato- diaqua-(2-hydroxobenzy- lidene)- 5- phenylthiazol- 2- amino Cobalt (II) Complex by N-bromosuccinimide

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Last updated: 01 Jan 2025

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Abstract

KINETICS oxidation of acetato- diaqua-(2-hydroxobenzylidene)-5-phenylthiazol-2-amino cobalt (II) complex by N-bromosuccinimide (NBS) in aqueous media was studied spectrophotometrically over the 25 –40 o+C range, 0.2 -0.5 mol dm-3 ionic strength, and pH range (6.1-7.3) for a range of NBS and [complex]. The reaction rate was first order dependence on [NBS] and [complex] and increased with decreasing [H+] over the pH's values. The experimental rate law was consistent with a mechanism in which the deprotonated form of the complex was considered as more reactive than its conjugate acid. Polymerization of acrylonitrile was taken as an evidence for the presence of free radical in the reaction mixture. It was assumed that electron transfer took place via an inner-sphere mechanism through the formation of the initial cobalt (III) products which were slowly converted to the final cobalt (III) products.

DOI

10.21608/ejchem.2012.1137

Keywords

Kinetics, Oxidation of cobalt (II) complex and Oxidation with N-bromosuccinimide

Volume

Article Issue

Related Issue

280

Issue Date

2012-04-01

Receive Date

2012-03-04

Publish Date

2012-04-30

Page Start

111

Page End

124

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 55_Issue 2_Pages 111-124.pdf

PDF . 349.8kB

Link

https://ejchem.journals.ekb.eg/article_1137.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=1137

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Type Code

292

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

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