No abstract

This paper describes preparation of the two-types of cations composed of di(1-azulenyl)methylium units based on a new structural principle of cyanine-cyanine (C-C) hybrid for the design of polyelectrochromic materials. Voltammetric analysis of these cations revealed the idealized reversible two-step, two-electron redox properties. Two-step color changes presumed by their C-C hybrid structure were revealed by their electrochemical reduction. The scope of the creation of the stabilized polyelectrochromic materials taking the new structural principle with azulene skeletons is demonstrated by two-types of examples.