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Inne
Copper(II) complexation by (pyridinyl)aminomethane-1,1-diphosphonic acid derivatives; spectroscopic and potentiometric studies.
Autorzy
Rok wydania
2011
Czasopismo
Numer woluminu
30
Strony
1274-1280
DOI
10.1016/j.poly.2011.02.006
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The complex formation between copper(II) and (pyridinyl)aminomethane-1,1-diphosphonic acid derivatives was studied by means of pH-potentiometry, spectroscopic methods (UV–Vis, EPR) and mass spectrometry (MS). The bisphosphonate ligands form polynuclear Cu3HxL3 (x = 4 ,3, 2, 1, 0, −1) species besides the mononuclear 1:1 and 1:2 metal-to-ligand molar ratio complexes. Two phosphonate groups are basic binding sites for the metal ion. It is suggested that in the polynuclear complexes the ligands adopt chelating and bridging modes via the four oxygen atoms of the two phosphonate groups.
Słowa kluczowe
Copper (II) complex, Diphosphonic acids, Stability constants, spectroscopic studies
Adres publiczny
https://doi.org/10.1016/j.poly.2011.02.006
Strona internetowa wydawcy
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