Molecular charge transfer complexes of metal ions thiazolylazo compounds with iodine

Abstract

Molecular charge transfer complexes of some thiazolazo compounds with Cu²⁺, Ni²⁺, Co²⁺, Zn²⁺, La³⁺ and Zr³⁺ complexes with iodine have been studied spectrophotometrically. The stoichiometry and formation constants of the complexes formed were determined. The effect of solvents, effect of buffer (pH 2‐11) and the energy of transition (E) were calculated. The optimum conditions favouring the formation of the coloured complexes were extensively studied by Beer's law and Ringbom method. Furthermore, the spectral characteristics, IR, UV‐Vis and ¹H NMR of the complexes were investigated and discussed in terms of donor molecular structure.

Citation

El‐Mossalamy, E.H. and Ibrahim, A.A. (2004), "Molecular charge transfer complexes of metal ions thiazolylazo compounds with iodine", Pigment & Resin Technology, Vol. 33 No. 1, pp. 32-38. https://doi.org/10.1108/03699420410512086