Reactivity of Tetra-4(4-methoxyphenoxy)phthalocyanine in Acid-Base Interactions with Nitrogen-Containing Organic Bases

Abstract

The interactions of tetra-4(4-methoxyphenoxy)phthalocyanine with pyridine, 2-methylpyridine, morpholine, piperidine, n-butylamine, tert-butylamine, diethylamine, and triethylamine in benzene and benzene–dimethylsulfoxide system have been studied. The acid-base reaction is an unusually slow process that forms proton transfer complexes that are stable over time. Their structure is proposed. The change in the reactivity of tetra-4(4-methoxyphenoxy)phthalocyanine depending on the polarity of the medium, proton-acceptor capacity, and spatial structure of the nitrogen-containing base is considered.