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Polarographic reduction of cis-aquochlorotetrammine cobalt(III) ion in presence of amino acids

✍ Scribed by W.U. Malik; M. Aslam

Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
281 KB
Volume
15
Category
Article
ISSN
0013-4686

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✦ Synopsis

C'Saquochlorotet rammine cobatt(III) ion is irreversibly reduced at the time. Addition of amino acids shifts El/z to more positive potentials, indicating the replacement of water and chlorine at the adjacent co-ordination positions by the amino acids. The shift in El12 follows the order: Iarginine > Flysine > df-valine > a-&nine M glycine. R&smn&L'ion cis-aquochlorotetrammine cobalt (III) est r6duit irr&versibIement & I'&ctrode g gouttes de mercure. L'addition d'aminoacides d&place Ella vers des potentiels plus positifs, incliquant Ie remplacement de l'eau et du chlore dans les positions adjacentes coordonrl&eS par les aminoacides. Le d&placement de E,h suit l'ordre: C-arginine > I-lysine > dl-valine > a-alanine M glycine. Zosamm~assmg-Das Cis-Aquochlorotetramin-ICobalt (III) ion wird an der Quecksilber-Tropfelektrode irreversibel reduziert. Die Zugabe von Aminos&uren verschiebt E,l* nach positiveren Werten, was auf eine Verdrangung von Wasser und Chlor aus den anliegenden Koordinationstellen durch die AminosWren hinweist. Die Verschiebung von Ells folgt der Reihe: I-Arginin > I-Lysin z=-&Valin > c+Alanin w Glycin.

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