Aqueous Equilibrium and Solution Structural Studies of the Interaction of N,N'-bis(4-imidazolymethyl)etylenediamine with Ca(II), Cd(II), Co(II), Cu(II), Mg(II), Mn(II), Ni(II), Pb(II) and Zn(II) Metal Ions

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Joao G Martins (Author) Other; Rui M Pinto (Author) Other; Paula Gameiro (Author) FCUP; Teresa T Barros (Author) Other; Helena M V M Soares (Author) FEUP

Journal

Title: Journal of Solution Chemistry

Vol. 39 No. 8

Pages: 1153-1167

ISSN: 0095-9782

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-003-2HK

DOI: 10.1007/s10953-010-9569-y

Abstract (EN): Divalent metal complexes of N,N'-bis(4-imidazolymethyl)etylenediamine (EMI) have been studied using potentiometric and spectroscopic techniques (UV-Vis and NMR methods) in aqueous 0.1 mola <...L(-1) KCl supporting electrolyte at 25 A degrees C. Final models and overall stability constants for the complexes of Ca(II), Cd(II), Co(II), Cu(II), Mg(II), Mn(II), Ni(II), Pb(II) and Zn(II) have been established by potentiometry for all M(II)-EMI systems, except for Co(II)-EMI. The data revealed that EMI forms ML complexes with all M(II)-EMI systems, which is the dominant species over a wide range of pH except for the Ca(II)-EMI and Mg(II)-EMI systems. Formation of the MnHL complex was also found for Mn(II)-EMI solutions. In addition, the UV-Vis and (1)H NMR results allowed us establish the coordination modes for the metal complexes between EMI with Cd(II), Cu(II), Ni(II) and Zn(II).

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15