Organic Four-Electron Redox Systems Based on Bipyridine and Phenanthroline Carbene Architectures.

ABSTRACT: Novel organic redox systems that display multistage redox behaviour are highly sought-after for a series of applications such as organic batteries or electrochromic materials. Here we describe a simple strategy to transfer well-known two-electron redox active bipyridine and phenanthroline architectures into novel strongly reducing four-electron redox systems featuring fully reversible redox events with up to five stable oxidation states. We give spectroscopic and structural insight into the changes involved in the redox-events and present characterization data on all isolated oxidation states. The redox-systems feature strong UV/Vis/NIR polyelectrochromic properties such as distinct strong NIR absorptions in the mixed valence states. Two-electron charge-discharge cycling studies indicate h

SUBMITTER: Antoni PW 

PROVIDER: S-EPMC9325510 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature