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Three rigid and structurally simple heterocyclic stilbene derivatives, (E)‐3H,3′H‐[1,1′‐biisobenzofuranylidene]‐3,3′‐dione, (E)‐3‐(3‐oxobenzo[c] thiophen‐1(3H)‐ylidene)isobenzofuran‐1(3H)‐one, and (E)‐3H,3′H‐[1,1′‐bibenzo[c] thiophenylidene]‐3,3′‐dione, are found to fluoresce in their neat solid phases, from upper (S2) and lowest (S1) singlet excited states, even at room temperature in air. Photophysical...
Ein einzigartiges Molekülgerüst erzeugt Mehrfachemissionen im Festkörper bei Raumtemperatur. Wie Y.‐Z. Chen, L.‐Z. Wu et al. in ihrem Forschungsartikel auf S. 10259 beschreiben, unterdrücken große Energielücken zwischen den S2‐ und S1‐Zuständen sowie reichlich vorkommende intra‐ und intermolekulare Wasserstoffbrücken interne Konversionen der oberen angeregten Zustände und ermöglichen beispiellose...
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