Assembly of Imidazolyl-Substituted Nitronyl Nitroxides into Ferromagnetically Coupled Chains
| Autor: | M. S. Yusubov, Yulia A. Vlasenko, Nina P. Gritsan, Vasily Romanov, Dmitry E. Gorbunov, Evgeny V. Tretyakov, Dominique Luneau, Irina Yu. Bagryanskaya, Elena Zaytseva |
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| Přispěvatelé: | Vorozhtsov Novosibirsk Institute of Organic Chemistry (RAS, SB, NN ), Novosibirsk State University (NSU), Institute of Chemical Kinetics and Combustion, Novosibirsk State University, Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Russia, Tomsk Polytechnic University [Russie] (UPT), Laboratoire des Multimatériaux et Interfaces (LMI), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2019 |
| Předmět: |
crystal structure
Nitroxide mediated radical polymerization Materials science General Chemical Engineering exchange interaction Crystal structure 010402 general chemistry 01 natural sciences imidazole Inorganic Chemistry chemistry.chemical_compound lcsh:QD901-999 [CHIM.CRIS]Chemical Sciences/Cristallography [CHIM]Chemical Sciences Imidazole Molecule General Materials Science density functional theory [PHYS]Physics [physics] 010405 organic chemistry Hydrogen bond Intermolecular force Exchange interaction [CHIM.MATE]Chemical Sciences/Material chemistry hydrogen bonding Condensed Matter Physics 3. Good health 0104 chemical sciences Crystallography chemistry nitronyl nitroxides Density functional theory lcsh:Crystallography |
| Zdroj: | Crystals Crystals, MDPI, 2019, 9 (4), pp.219. ⟨10.3390/cryst9040219⟩ Crystals, Vol 9, Iss 4, p 219 (2019) Volume 9 Issue 4 |
| ISSN: | 2073-4352 |
| DOI: | 10.3390/cryst9040219 |
| Popis: | New nitronyl nitroxides, namely, 2-(4,5-dimethylimidazol-2-yl)- and 2-(4,5-dichloroimidazol-2-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazol-3-oxide-1-oxyl, were prepared in crystalline form. According to single-crystal X-ray data, intra- and intermolecular hydrogen bonds are formed between NH groups of the imidazole cycles and O atoms of the nitroxide moieties. The intermolecular H-bonds contribute to the alignment of molecules into chains along the a-axis this alignment causes short intrachain contacts between O and C atoms carrying spin density of opposite signs. Such an arrangement of nitroxides induces ferromagnetic intrachain interactions (J &asymp 10 cm&minus 1) between neighboring radicals. |
| Databáze: | OpenAIRE |
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