Heterospin complex showing spin transition at room temperature
作者： S.E. Tolstikov , N.A. Artiukhova , G.V. Romanenko , A.S. Bogomyakov , E.M. Zueva
DOI: 10.1016/J.POLY.2015.07.029
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摘要: Abstract New nitronyl nitroxides LMe and LMe-CP containing a 4-methylpyridin-3-yl substituent were synthesized. It was found that the interaction of Сu(hfac)2 with gave binuclear [Cu(hfac)2LMe]2 [Cu(hfac)2LMe-CP]2·Solv (Solv = n-C6H14, n-C10H22, n-C16H34) chain polymer {[[Cu(hfac)2]2LMe2][Cu(hfac)2]}∞ heterospin complexes. An important structural peculiarity is large dihedral angle between planes O –N−C N → O paramagnetic fragment pyridine ring: 55.2 56.1°, respectively. The presence methyl group in ring nitroxide molecule proved favorable for spin transition at nearly room temperature.
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sci-hub.se 参考文章(19)
Robin Hicks, Stable radicals : fundamentals and applied aspects of odd-electron compounds Wiley. ,(2010) , 10.1002/9780470666975
Magnetism: Molecules to Materials IV Magnetism: Molecules to Materials IV. pp. 496- ,(2001) , 10.1002/9783527620548
Victor Ovcharenko, Metal-Nitroxide Complexes: Synthesis and Magnetostructural Correlations Stable Radicals. pp. 461- 506 ,(2010) , 10.1002/9780470666975.CH13
Victor Ovcharenko, Elena Bagryanskaya, Breathing Crystals from Copper Nitroxyl Complexes John Wiley & Sons, Ltd. pp. 239- 280 ,(2013) , 10.1002/9781118519301.CH9
Fabrice Lanfranc de Panthou, Dominique Luneau, Ryza Musin, Lars Öhrström, André Grand, P. Turek, Paul Rey, Spin-Transition and Ferromagnetic Interactions in Copper(II) Complexes of a 3-Pyridyl-Substituted Imino Nitroxide. Dependence of the Magnetic Properties upon Crystal Packing Inorganic Chemistry. ,vol. 35, pp. 3484- 3491 ,(1996) , 10.1021/IC951295Y
Victor I. Ovcharenko, Galina V. Romanenko, Ksenia Yu. Maryunina, Artem S. Bogomyakov, Elena V. Gorelik, Thermally Induced Magnetic Anomalies in Solvates of the Bis(hexafluoroacetylacetonate)copper(II) Complex with Pyrazolyl-Substituted Nitronyl Nitroxide Inorganic Chemistry. ,vol. 47, pp. 9537- 9552 ,(2008) , 10.1021/IC8011074
J. A. Bertrand, Roy I. Kaplan, A Study of Bis(hexafluoroacetylacetonato)copper(II) Inorganic Chemistry. ,vol. 5, pp. 489- 491 ,(1966) , 10.1021/IC50037A039
Elena V. Gorelik, Victor I. Ovcharenko, Martin Baumgarten, “Hidden” Spin–Spin Interactions in Complex Multispin Solids European Journal of Inorganic Chemistry. ,vol. 2008, pp. 2837- 2846 ,(2008) , 10.1002/EJIC.200701305
M. Shoji, K. Koizumi, Y. Kitagawa, T. Kawakami, S. Yamanaka, M. Okumura, K. Yamaguchi, A general algorithm for calculation of Heisenberg exchange integrals J in multispin systems Chemical Physics Letters. ,vol. 432, pp. 343- 347 ,(2006) , 10.1016/J.CPLETT.2006.10.023
R. N. Musin, I. V. Ovcharenko, L. Ohrström, P. Rey, Magnetic properties of Cu(II) bischelate complexes with 3-imidazoline nitroxides. 2. Anab initio analysis of exchange interaction mechanisms Journal of Structural Chemistry. ,vol. 38, pp. 711- 715 ,(1997) , 10.1007/BF02763882