Complexation of Iron by Dopamine Analogs; A Spectrophotometric and Potentiometric Study.

Autor: Fiaz, T., Fatima, N., Zaidi, S. Z. A.
Předmět:
Zdroj: Pakistan Journal of Chemistry; 2013, Vol. 3 Issue 2, p75-80, 6p
Abstrakt: The chelation of Bio-essential metal, Iron, with dopamine analogs was studied at 30±2°C. Fe2+ formed intense color complex with these molecules with an absorbance maxima in visible region. A distinct peak of Fe-Carbidopa complex at 364nm with molar absorptivity of 1600 M-1 cm-1 was observed while that of Fe-Levodopa and Fe-Methyldopa were observed at 730nm with molar absorptivities of 306 M-1 cm-1 and 2300 M-1 cm-1, respectively. Potentiometric studies of the complex indicate that Fe(II) forms a 1:3 complex with levodopa and methyldopa while a 1:2 complex is found in case of carbidopa. The results obtained are consistent with the spectrophotometric studies. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index