Synthesis, spectroscopic and Kinetic studies of some N-aryl pyridinium derivatives

Author : E. H. El-Mossalamy, R. O. Alorabi, A. Y. Obaid, S. A. Hameed , L. M. Al-Harbi

New N- phenylpyridinium derivatives compounds were synthesized, their molecule structure were confirmed by elemental analyses, IR, NMR and UV-visible spectroscopy. The reaction kinetics of these compounds with metal ions such as Fe2+, Cu2+and V3+ were investigated by conductivity and spectroscopy methods respectively at different time and different temperature. From spectroscopy and conductivity studies of N-phenylpyridinium compounds under investigation we found the values of activation energy for all compounds in conductometric methods(1.7-9.2 kJmol-1) are smaller than the corresponding values measured by spectroscopy method (2.2-13.5 kJ mol-1), therefore we can conclude that the conductometric methods is better than spectroscopy method for studying kinetic reaction for these compounds.

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