Breathing some new life into an old topic: Chalcogen-nitrogen π-heterocycles as electron acceptors

Abstract

Recent progress in the design, synthesis and characterization of chalcogennitrogen π-heterocycles, mostly 1,2,5-chalcogenadiazoles (chalcogen: S, Se and Te) and their fused derivatives, possessing positive electron affinity is discussed together with their use in preparation of charge-transfer complexes and radical-anion salts - candidate building blocks of molecule-based electrical and magnetic functional materials. © 2013 by the authors; licensee MDPI, Basel, Switzerland.