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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

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

Revista

Título: Journal of Solution Chemistry

Vol. 39 Nº 8

Páginas: 1153-1167

ISSN: 0095-9782

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 4 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: 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).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15