Controlling Charged State Colors in Triphenylamine-Based Anodically Coloring Electrochromes.

ABSTRACT: In this work, we have designed a series of anodically coloring electrochromic (ACE) molecules comprised of thioalkyl-substituted 3,4-ethylenedioxythiophenes coupled to triphenylamine units (EDOT-TPA) that vary in the position and degree of electron richness of substituents, which influences the molecules geometric, electrochemical, optoelectronic, and excited-state properties. We evaluated their redox properties and discovered that modulation of both the first and second oxidation potential, formation of the cation radical and dication, can be varied from 0.03 to 0.18 V and 0.32 to 0.46 V versus Fc/Fc⁺ respectively. For the first time in ACE-based molecular systems, we demonstrated the ability to vary the electrochemical potential separation between successive charge states, whi

SUBMITTER: Wagner JS 

PROVIDER: S-EPMC11801034 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature