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Inne
N,N'-ethylenediaminobis(benzylphosphonic acids) as a potent class of chelators for metal ions.
Autorzy
Rok wydania
2009
Czasopismo
Numer woluminu
362
Strony
707-713
DOI
10.1016/j.ica.2008.04.035
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Aminophosphonates were found to be effective metal ion chelators. Ethylenediamine (EN) itself binds strongly to a series of metal ions forming efficient five-membered chelate ring using two nitrogen donors. Combination of EN with phosphonate function results in the family of low molecular chelating agents. Introduction of a pyridine moiety into EN–phosphonate structure results in the very effective ligands involving a four-nitrogen donor set to coordinate the metal ion. In this work, the potentiometric and spectroscopic data for two analogues 2,2′-(ethylenedi-imino)bis(3-pyridylphosphonic-acid) – L2 and 2,2′-(ethylenedi-imino)bis(2-pyridyl-phosphonic-acid) – L3, comprising EN, two phosphonates and two pyridines with Cu(II), Ni(II) and Zn(II) ions are presented showing very high efficacy of one of the ligands studied.
Słowa kluczowe
Aminophosphonates, Cu(II), Ni(II), Zn(II) complexes, Potentiometry, UV–Vis, EPR and NMR spectroscopy
Adres publiczny
https://doi.org/10.1016/j.ica.2008.04.035
Strona internetowa wydawcy
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