Kinetics of periodate oxidation of &lt;i&gt;tris&lt;/i&gt;-(4,4'-dimethyl-2,2'-bipyridine) iron(II) in acid medium

Ayodele, E.T.; Olajire, Abass A.; Oladoye, Sunday

doi:10.4314/bcse.v14i2.71975

Cited by 2 publications

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“…The effects of the different factors suggest which of these forms are the active and inactive species involved in these reaction kinetics. The influence of the dielectric constant on k obs shows that the reacting species have unlike charges, whereas a literature survey [7,8,20] …”

Section: Effect Of [So 4 2-]mentioning

confidence: 99%

“…Hence, the kinetics and mechanism for these types of reactions can easily be studied using spectrophotometry. Examples of such include the study by Ayodele, Olajire and Oladoye [7] of the kinetics and mechanism of the periodate oxidation of the 4,4ƍ-dimethyl derivative of the ferrous bipyridine complex in acidic medium, and by Burgess and Prince [8] of the kinetics of the peroxydisulfate oxidation of iron(II) complexes with tris-2,2ƍ-bipyridine, substituted tris-2,2ƍ-bipyridine, tris-1,10-phenanthroline, substituted tris-1,10-phenanthroline and bis-2,2ƍ:6ƍ,2ƍƍ-terpyridine or bis-2,2ƍ:6ƍ,2ƍƍ-terpyridyl.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the use of the Eqs. (6)(7)(8) and (10)(11)(12) (17) where the second order rate constant, kƍ obs , has the unit M -1 s -1 (i.e., conc. -1 time -1 ) and K i is the inhibition constant.…”

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confidence: 99%

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Kinetics and mechanism of the oxidation of a ferrous complex with an α,α′-diimine chelate ligand by ceric sulfate in aqueous acidic medium by UV-vis absorption spectroscopy

Khattak

Naqvi

Farrukh

2008

JICS

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Kinetics of the oxidation of tris(2,2ƍ-bipyridine)iron(II) sulfate by ceric sulfate was spectrophotometrically studied in an aqueous sulfuric acid medium. Different methods, including isolation, integration and half-life, were employed to determine the reaction order. The redox reaction was found to be first-order with respect to the reductant, tris(2,2ƍ-bipyridine)iron(II) sulfate, and the oxidant, ceric sulfate. Complex kinetics was observed with an increase in the initial concentration of the oxidant. The influence of the dielectric constant, [H + ] and [SO 4 2-] on the rate was also investigated. The increase in the dielectric constant and H + ion concentration of the medium retard the rate, while an increase in the SO 4 2-ion concentration first accelerates the rate, and then retards the reaction. The effect of each factor, i.e., the dielectric constant, H + ions and SO 4 2-ions, suggests that Ce(SO 4 ) 3 2-is

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Section: Effect Of [So 4 2-]mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%