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Molecular Polygons Probe the Role of Intramolecular Strain in the Photophysics of π-Conjugated Chromophores

Wilhelm, Philipp ; Vogelsang, Jan ; Poluektov, Georgiy ; Schönfelder, Nina ; Keller, Tristan J. ; Jester, Stefan-Sven ; Höger, Sigurd ; Lupton, John M.



Abstract

pi-Conjugated segments, chromophores, are the electronically active units of polymer materials used in organic electronics. To elucidate the effect of the bending of these linear moieties on elementary electronic properties, such as luminescence color and radiative rate, we introduce a series of molecular polygons. The p-system in these molecules becomes so distorted in bichromophores (digons) ...

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