Structure and Dynamics of the Excited States of 1,3-Diarylisobenzofurans: An Experimental and Theoretical Study
| Autor: | Svetlana Tsekhanovich, Jacques Einhorn, Frédérique Loiseau, Jérôme Jacq, Jérôme Chauvin, Cathy Einhorn, Damien Jouvenot, Bernard Bessieres, Maylis Orio |
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| Přispěvatelé: | Département de Chimie Moléculaire - Synthèse Et Réactivité en Chimie Organique (DCM - SeRCO), Département de Chimie Moléculaire (DCM), Université Joseph Fourier - Grenoble 1 (UJF)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Département de Chimie Moléculaire - Chimie Inorganique Redox Biomimétique (DCM - CIRE), Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 (LASIRE), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Centrale Lille Institut (CLIL), Département de Chimie Moléculaire - Chimie Inorganique Redox (DCM - CIRE), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2012 |
| Předmět: |
010405 organic chemistry
Chemistry Dynamics (mechanics) Structure (category theory) Charge (physics) General Medicine Nanosecond 010402 general chemistry 01 natural sciences Biochemistry 3. Good health 0104 chemical sciences [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry Solvent Intramolecular force Excited state Physics::Chemical Physics Physical and Theoretical Chemistry Atomic physics |
| Zdroj: | Photochemistry and Photobiology Photochemistry and Photobiology, Wiley, 2012, 88, pp.633-638. ⟨10.1111/j.1751-1097.2012.01090.x⟩ Photochemistry and Photobiology, 2012, 88, pp.633-638. ⟨10.1111/j.1751-1097.2012.01090.x⟩ |
| ISSN: | 0031-8655 |
| DOI: | 10.1111/j.1751-1097.2012.01090.x |
| Popis: | The emission properties of a series of substituted 1,3-diarylisobenzofurans have been studied. Most compounds exhibit very intense emission in the nanosecond timescale at room temperature as well as at 77 K. The room temperature emission is attributed to the deactivation of a twisted intramolecular charge transfer excited state, based on its energy, shape and solvent dependence. The experimental results are strongly supported by a theoretical study on one representative compound. The DFT/TD-DFT calculations demonstrate that the initial excited state relaxes toward a twisted structure. |
| Databáze: | OpenAIRE |
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