Series of charge transfer complexes obtained as crystals in a confined environment
| Autor: | Christine Stern, Jean-Pierre Couvercelle, Yoann Rousselin, Marcel Bouvet, Rita Meunier-Prest, Bernard Malezieux, Ali Sanda Bawa |
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| Přispěvatelé: | Institut de Chimie Moléculaire de l'Université de Bourgogne [Dijon] (ICMUB), Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-Institut de Chimie du CNRS (INC), Centre National de la Recherche Scientifique (CNRS), Institut Parisien de Chimie Moléculaire (IPCM), Chimie Moléculaire de Paris Centre (FR 2769), Institut de Chimie du CNRS (INC)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Hydrogen bond Intermolecular force 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences chemistry.chemical_compound symbols.namesake Crystallography chemistry symbols [CHIM]Chemical Sciences Molecule General Materials Science Absorption (chemistry) van der Waals force 0210 nano-technology Benzene Raman spectroscopy Stoichiometry |
| Zdroj: | CrystEngComm CrystEngComm, Royal Society of Chemistry, 2021, 23 (36), pp.6418-6426. ⟨10.1039/d1ce00929j⟩ |
| ISSN: | 1466-8033 |
| Popis: | A series of charge transfer complexes (CTCs) were successfully formed by solvent free processing techniques, using the 1,2,4,5-tetracyano benzene (TCNB) as πA molecule and a series of p-dihydroquinones (H2Qs) as πD counterparts. Additionally to the classical co-evaporation techniques, we obtained CTCs in less than an hour, in a very simple confined environment, between two 100 μm – spaced glass plates. A systematical study by Raman spectroscopy on crystals highlighted the CTCs formation. Moreover, three new crystalline structures were obtained, namely TCNB-H2Q that crystallizes in columns connected to each other by H-bonds, while with the methoxy- and dimethoxy-H2Qs the CTC forms crystals with the stoichiometry 1 : 2, TCNB-(H2QOMe)2 and TCNB-(H2QOMe2)2. In TCNB-(H2QOMe)2 layers are formed due to intermolecular hydrogen bonds, while in TCNB-(H2QOMe2)2 molecules arrange in triads, with πA–πD interactions. In all cases, strong πA–πD interactions exist with intermolecular distances lower than the van der Waals distances, which results in strong absorption bands in the visible range. |
| Databáze: | OpenAIRE |
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