Repozytorium
Wyszukaj
Kolekcje
Inne
Nickel(II) complexes of hydroxamic analoques of aminoacids.
Autorzy
Rok wydania
1990
Czasopismo
Journal of Inorganic Biochemistry
Numer woluminu
38
Strony
9-16
DOI
10.1016/0162-0134(90)85002-E
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Potentiometric and spectroscopic data have been used to establish the coordination equilibria in systems containing Ni(II) and hydroxamic derivatives of the aminoacids His, Ala, Leu, and Sar. The main binding sites are the amino and deprotonated hydroxamic nitrogens, and the symmetry around metal ion is square-planar. The presence of the strong binding sites in the aminoacid side-chain considerably influence the binding equilibria. In the case of the histidine hydroxamic acid analogue, the imidazole nitrogen is a competitive donor, and the ligand remains tridentate up to pH ca. 9. The deprotonation of oxygen of a hydroxamic moiety leads, however, to the square-planar complex with {NH2, N−} coordination.
Adres publiczny
https://doi.org/10.1016/0162-0134(90)85002-E
Strona internetowa wydawcy
Podobne publikacje
N-bonding of the hydroxamic function in nickel(II) and copper(II) complexs with 2-(hydroxyimino)propanohydroxamic acid.
Dobosz Agnieszka, Dudarenko Nikolay M., Fritsky Igor O., Głowiak Tadeusz, Karaczyn Aldona, Kozłowski Henryk, Sliva Tatiana Yu., Świątek-Kozłowska Jolanta
Five-coordinate complexes of 21-thiaporphyrin : preparations, spectra, and structures of iron(II), nickel(II), and copper(II) complexes.
Latos-Grażyński Lechosław, Lisowski Jerzy, Olmstead Marylin M., Balch Alan L.
Coordination diversity in mono- and oligonuclear copper(II) complexes of pyridine-2-hydroxamic and pyridine-2,6-dihydroxamic acids.
Gumienna-Kontecka Elżbieta, Golenya Irina A., Szebesczyk Agnieszka, Haukka Matti, Krämer Roland, Fritsky Igor O.