Viologen–cucurbituril host/guest chemistry – redox control of dimerization versus inclusion
| Autor: | Ali Trabolsi, Parastoo Dalvand, Dinesh K. Shetty, Mourad Elhabiri, Farah Benyettou, Carlos Platas-Iglesias, Katia Nchimi Nono, Mark A. Olson, Zouhair Asfari |
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| Přispěvatelé: | Laboratoire d'innovation moléculaire et applications (LIMA), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), NYUAD Research Institute, NYUAbu Dhabi, Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Universidade da Coruña, España, Department of Chemistry, Northwestern University, Northwestern University [Evanston] |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
[CHIM.ORGA]Chemical Sciences/Organic chemistry
010405 organic chemistry General Chemical Engineering Viologen General Chemistry 010402 general chemistry Electrochemistry 01 natural sciences Medicinal chemistry Redox 0104 chemical sciences 3. Good health chemistry.chemical_compound Monomer chemistry Cucurbituril Intramolecular force medicine [CHIM.OTHE]Chemical Sciences/Other Host–guest chemistry medicine.drug |
| Zdroj: | RUC. Repositorio da Universidade da Coruña instname RSC Advances RSC Advances, Royal Society of Chemistry, 2021, 11 (47), pp.29543-29554. ⟨10.1039/D1RA05488K⟩ |
| ISSN: | 2046-2069 |
| Popis: | International audience; Two calix[4]arene systems, C234+ and C244+, where 2 corresponds to the number of viologen units and 3-4 corresponds to the number of carbon atoms connecting the viologen units to the macrocyclic core, have been synthesized and led to the formation of [3]pseudorotaxanes when combined with either CB[7] or CB[8]. The [3]pseudorotaxanes spontaneously dissociate upon reduction of the bipyridinium units as the result of intramolecular dimerization of the two face-to-face viologen radical cations. CB[7] and CB[8]-based [2]pseudorotaxanes containing monomeric viologen guest models compounds, MC32+ and MC4+, do not undergo decomplexation and dimerization following electrochemical reduction of their bipyridinium units. |
| Databáze: | OpenAIRE |
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