DocumentCode :
1958162
Title :
Computation of multimetalmultiligand complex formation equilibria in aqueous medium involving glutamic acid as primary ligand and Uracil as secondary ligand
Author :
Bartaria, Divya ; Sinha, S. ; Chandra, P. ; Krishna, Vamshi
Author_Institution :
Dept. of Appl. Mech., Univ. of Allahabad, Allahabad, India
fYear :
2013
fDate :
3-4 Aug. 2013
Firstpage :
1
Lastpage :
6
Abstract :
Metallic complexes of multimetal and multiligand systems are complicated for calculating equilibrium concentrations in solution. Complexation equilibria have been deduced on the basis of speciation curves obtained through SCGOS computer program. The formation constants of ternary(1:1:1) quaternary(1:1:1:1) complexes of CuII, PbII, HgII, CdII, ZnII, CoII and NiII with Glutamic acid(A) and Uracil(B) as ligands have been determined potentiometrically in aqueous medium.Study of metal complexes of said ligands with respect to their stability, solution structure and quantitative aspects has been done. Acid dissociation constants of the ligands used and the formation constants of the ternary and quaternary complexes were determined at 37±1°C and in ionic strength I = 0.1 M NaNO3. Different concentration of species as a function of pH was examined and sequence of overall stability constants for MA, MB, MAB and M1M2AB type of complexes have been discussed which seem to follow Irving William order.
Keywords :
biochemistry; biology computing; cadmium compounds; chemical equilibrium; cobalt compounds; copper compounds; lead compounds; mercury compounds; molecular biophysics; nickel compounds; organic compounds; pH; potentiometers; solvent effects; stability; zinc compounds; Cd(II) complex; Co(II) complex; Cu(II) complex; Hg(II) complex; Irving William order; M1M2AB complex type; MA complex type; MAB complex type; MB complex type; Ni(II) complex; Pb(II) complex; SCGOS computer program; Zn(II) complex; acid dissociation constant; aqueous medium; complexation equilibria; glutamic acid; ionic strength; metal complex quantitative aspect; metal complex stability; metallic complex; multimetal multiligand complex formation equilibria computation; multimetal multiligand system; overall stability constant sequence; pH effect; potentiometric method; primary ligand; quaternary complex formation constant; secondary ligand; solution equilibrium concentration calculation; solution structure; speciation curve; species concentration; uracil; Ions; Mercury (metals); Nanobioscience; Water; Zinc; Glutamic acid; SCOGS; Uracil; multimetalmutiligand complexes; stability constants;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control Computing Communication & Materials (ICCCCM), 2013 International Conference on
Conference_Location :
Allahabad
Print_ISBN :
978-1-4799-1374-9
Type :
conf
DOI :
10.1109/ICCCCM.2013.6648910
Filename :
6648910
Link To Document :
بازگشت