Journal :   Asian Journal of Research in Chemistry

Volume No. :   3

Issue No. :  2

Year :  2010

Pages :   442-446

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Kinetics of Substitution of Cis-Bis (Oxalato) Diaquo Chromate (III) With Glycine, Dl-Alanine and Dl-Phenylalanine in Acid Medium



Address:   Venkata Subba Rao Mushini1*, Ananta Ramam Veluri2 and Muralidhara Rao Volety2
1Department of Chemistry, G M R Institute of Technology, Rajam 532 127, Andhra Pradesh, INDIA
2 School of Chemistry, Andhra University, Visakhapatnam 530 003, Andhra Pradesh, INDIA
*Corresponding Author
DOI No:

ABSTRACT:
The kinetics of interaction between amino acids such as Glycine, DL-alanine and DL-phenylalanine and cis-bis(oxalato)diaquochromate(III) has been studied spectrophotometrically as a function of [Glycine], [DL-alanine] and [DL-phenylalanine]. The effect of pH, temperature and substrate is also studied. The substrate exists predominantly as the diaquospecies and amino acids (Glycine, DL-alanine and DL-phenylalanine) as the zwitterion at the experimental conditions. The substitution reaction has been found to proceed via two steps: amino acid dependent and amino acid independent paths indicating that the substitution reaction occurs through Ia mechanism in the amino acid dependent path and the dissociative mechanism in the independent path, showing the higher reactivity of single ended oxalate complex.
KEYWORDS:
Kinetics, Substitution, Cis-bis(oxalato)diaquochromate(III), amino acids.
Cite:
Venkata Subba Rao Mushini, Ananta Ramam Veluri, Muralidhara Rao Volety. Kinetics of Substitution of Cis-Bis (Oxalato) Diaquo Chromate (III) With Glycine, Dl-Alanine and Dl-Phenylalanine in Acid Medium. Asian J. Research Chem. 3(2): April- June 2010; Page 442-446.
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