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

Abstract

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.