Percentage Distribution of Ni(II) in Biligand Systems Involving Some Biologically Significant Ligands Upadhyaya Neerja1,*, Dwivedi K.2, Ahuja R. Nair3 1S.S. Jain Subodh Girls College, Sanganer, Jaipur, Rajasthan, India-302011 2School of Studies in Chemistry, Jiwaji University, Gwalior, Madhya Pradesh, India-474011 3Vijya Raje Govt. Girls P. G. College, Morar, Gwalior, M.P., India-474006 *Corresponding Author E-mail: upadhyayaneerja@gmail.com
Online published on 26 March, 2018. Abstract Bioaccumulation of metal ions involves formation of complexes. Solution studies on biomimmetic systems were carried out. Results obtained for nickel(II), L-tyrosine, L-alanine, L-phenylalanine, L-aspartic acid and Lglutamic acid are being presented in this piece of work. All these ligands are physiologically related to each other and are directly or indirectly involved in nerve transduction. These ligands coordinate with metal ions. Equimolar ternary systems involving L-tyrosine were investigated in aqueous medium at different temperatures and ionic strengths in order to find out K, enthalpy, entropy and free energy change of formation of biligand complexes. pH-metric data was subjected to SCOGS Computer program to refine the values as calculated by the method of Martell and Chaberek. Percentage distribution of metal ion over the entire experimental pH range was obtained. Top Keywords biligand complexes, ionic strength, percentage distribution. Top |