Interaction of new polyamine ligand N,N,N ′, N ′-tetrakis(2-salicylideneaminoethyl)butane-1,4-diamine with iodine in chloroform and dichloromethane solutions

Abstract

The kinetics of complex formation reaction of iodine with N,N,N′,N′-tetrakis(2-salicylideneaminoethyl)butane-1,4-diamine have been studied spectrophotometrically at various temperatures in chloroform and dichloromethane solutions. The results indicate the formation of an electron donor–acceptor complex (EDA), which is followed by two relatively slow consecutive reactions. Pseudo-first order rate constants at various temperatures for the formation of the ionic intermediate, and the final product have been evaluated by computer fitting of the absorbance time data to appropriate equations.

Keywords:

• N,N,N′,N′-tetrakis(2-salicylideneaminoethyl)butane-1,4-diamine
• Iodine
• Rate constant