Mechanism of electron transfer reactions of ternary nitrilotriacetato cobaltate(II) complexes involving maleate and tartarate by periodate

Abstract

The oxidation of [Co^IINMa(H₂O)]³⁻ · 4H₂O and [Co^IINT(H₂O)]³⁻ · 4H₂O by periodate have been studied kinetically in aqueous solution by periodate where, [N = nitrilotriacetate, Ma = maleic acid, and T = tartaric acid] over 25–45°C and a variety pH range. The oxidation of [Co^IINMa(H₂O)]³⁻ by periodate, obeys the rate law,

while the reaction of [Co^IINT(H₂O)]³⁻, with periodate follows the rate equation

The thermodynamics activation parameters have been calculated.

Keywords:

• Periodate oxidation
• Nitrilotriacetato cobaltate(II)
• Caffeic acid
• Maleic acid
• Tartaric acid

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