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Oxidation of lysine by ferricyanide in presence of osmium(VIII)

Oxidation von lysin mittels ferricyanid in der gegenwart von osmium(VIII)

  • Anorganische, Struktur- und Physikalische Chemie
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Monatshefte für Chemie / Chemical Monthly Aims and scope Submit manuscript

Abstract

Osmium(VIII) catalysed oxidation of lysine by ferricyanide in excess ferrocyanide shows a complex kinetics. The order in lysine falls, from 1 to 0 while that in ferricyanide increases from 0 to 2 with large increase in lysine concentration. The rates were directly proportional to [Os(VIII)] and {Const.+[Fe(CN) 46 ]}. A suitable mechanism is proposed and discussed.

Zusammenfassung

Die von Os(VIII) katalysierte Oxidation von Lysin mit Ferricyanid in überschüssigem Ferrocyanid zeigt eine komplexe Kinetik. Bei starker Steigerung der Lysinkonzentration fällt die Ordnung bezüglich Lysin von 1 auf 0, während bezüglich Ferricyanid eine Erhöhung, von 0 auf 2 festzustellen ist. Die Geschwindigkeitskonstanten waren direkt proportional zu [Os(VII)] und {Const.+[Fe(CN) 46 ]}. Es wird ein möglicher Mechanismus vorgeschlagen und diskutiert.

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Upadhyay, S.K., Agrawal, M.C. Oxidation of lysine by ferricyanide in presence of osmium(VIII). Monatshefte für Chemie 110, 413–418 (1979). https://doi.org/10.1007/BF00911929

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  • DOI: https://doi.org/10.1007/BF00911929

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