Organische Vier‐Elektronen Redox‐Systeme basierend auf Bipyridin‐ und Phenanthrolin‐Carben‐Architekturen

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