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Research Article
 

Substitution of Aquo-Ligands from Hexaaquochromoium(III) Ion by Cysteine. A Kinetic and Mechanistic Study



M.M. Al-Subu
 
ABSTRACT

Substitution of aquo – lingands from hexaaqouchromolum (III) ion by Cysteine (Hcys) has been studied Kinetically at [H+] of 1.0 x 10-2 mol dm-3. The calculated activation parameters ( H* and S*) have been compared with those of water – exchange and related anation reactions of haxaaquochromium (III) ion. The obtained results support an associated path SN2).

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  How to cite this article:

M.M. Al-Subu , 2003. Substitution of Aquo-Ligands from Hexaaquochromoium(III) Ion by Cysteine. A Kinetic and Mechanistic Study. Journal of Applied Sciences, 3: 110-112.

DOI: 10.3923/jas.2003.110.112

URL: https://scialert.net/abstract/?doi=jas.2003.110.112

REFERENCES
Gaswick, D.C. and S.M. Malinak, 1993. Kinetics and mechanism of the anation reaction of the aquapentaamminechromium(III) ion with the hexacyanocobaltate(III) ion. Inorg. Chem., 32: 175-177.
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Gonzalez, G. and M. Martinez, 1995. Steric effects on the substitution of pentaamine-chromium(III) and -rhodium(III) complexes. Anation reaction rate constants as an indicative of the dissociative shift of the mechanism on crowding the [M(RNH2)5H2O]3+ (M = Rh, R = H, Me, Et, Pr; M = Cr, R = H, Me, Pr) complexes. Inorg. Chem. Acta, 230: 67-75.
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White, A., P. Handler and E.L. Smith, 1973. Principles of Biochemistry. McGraw-Hill Kogakusha Ltd., Tokyo, Japan.

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