Equilibria in Cobalt(II) - Amino Acid - Imidazole System under Oxygen-free Conditions. Part I. Studies on Mixed Ligand Systems with L-alfa-Alanine

• Autorzy: Woźniczka M. , Pająk M. , Vogt A. , Kufelnicki A.
• Języki publikacji: EN

Abstrakty

EN

Glass electrode potentiometry and UV/Vis spectrophotometry experiments have been carried out in order to determine the equilibria in an oxygen-free Co(II)-Amac-Himid system in aqueous solution, where Amac = L-alfa-alanine and Himid = 1,3-diazole (imidazole). The presence of axial imidazole in the structure of the ternary complex was implicated by using a [Co(imid)2]n polymer as starting material. Two proposed coordination modes of the mixed-ligand complex have been confirmed both by suitable experimental methods and by a fitting procedure (using EMF and absorbance data). One of these coordination modes is known as a model imitating the metal center in hemoglobin, whereas the other one has not been considered as yet.

Słowa kluczowe

EN

cobalt(II); L-alfa-alanine; imidazole; oxygen-free ternary complexes

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2006
• Tom: Vol. 80, nr 12
• Strony: 1959--1966
• Opis fizyczny: Bibliogr.

Twórcy

autor

Woźniczka M.

autor

Pająk M.

autor

Vogt A.

autor

Kufelnicki A.

• Laboratory of Physical and Biocoordination Chemistry, Faculty of Pharmacy, Medical University of LódY, 1 Muszynski Str., 90-151 LódY, Poland

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