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Inne
Bisphosphonate chelating agents coordination ability of 1-phenyl-1-hydroxymethylene bisphosphonate towards Cu2+ ions.
Autorzy
Rok wydania
2002
Czasopismo
Journal of Inorganic Biochemistry
Numer woluminu
89
Strony
13-17
DOI
10.1016/S0162-0134(01)00412-3
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Potentiometric and EPR data allow for evaluation of the coordination equilibria in the Cu2+–bisphosphonate system. The bisphosphonic ligand was found very efficient in Cu2+ chelation with formation of monomeric and dimeric species. Two phosphonate groups are basic binding sites for metal ion. The involvement of hydroxyl in metal ion coordination is also likely, especially when one phosphonate is protected by dimethyl ester. As the metal bound phosphonate groups are relatively bulky (six oxygens) and their negative charge above pH 4 is high (four per ligand) the equimolar species is a dominant complex at physiological pH.
Słowa kluczowe
Bisphosphonates, Copper complexes, Potentiometry, Electron paramagnetic resonance
Adres publiczny
https://doi.org/10.1016/S0162-0134(01)00412-3
Strona internetowa wydawcy
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