Thermally Induced Magnetic Anomalies in Solvates of the Bis(hexafluoroacetylacetonate)copper(II) Complex with Pyrazolyl-Substituted Nitronyl Nitroxide
作者： Victor I. Ovcharenko , Galina V. Romanenko , Ksenia Yu. Maryunina , Artem S. Bogomyakov , Elena V. Gorelik
DOI: 10.1021/IC8011074
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摘要: We succeeded in synthesizing of a whole family isostructural solvates the copper(II) hexafluoroacetylacetonate complex with pyrazolyl-substituted nitronyl nitroxide (L): Cu(hfac)2L·0.5Solv. The main feature inherent nature Cu(hfac)2L·0.5Solv single crystals is their incredible mechanical stability and ability to undergo reversible structural rearrangements temperature variation, accompanied by anomalies on μeff(T) dependence. Structural investigation complexes over wide range before after transition ensuing magnetic phase showed that spatial peculiarities solvent molecules incorporated into solid govern character dependence region anomaly. Thus, doping definite could be used as an efficient method control anomaly (Ta). this special series has revealed rel...
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V. I. Ovcharenko, S. V. Fokin, G. V. Romanenko, Yu. G. Shvedenkov, V. N. Ikorskii, E. V. Tretyakov, S. F. Vasilevskii, Nonclassical Spin Transitions Journal of Structural Chemistry. ,vol. 43, pp. 153- 167 ,(2002) , 10.1023/A:1016094421024
T. A. Kennedy, Sung Ho Choh, G. Seidel, Temperature Dependence of the Exchange Interaction in K 2 Cu Cl 4 · 2 H 2 O Physical Review B. ,vol. 2, pp. 3645- 3651 ,(1970) , 10.1103/PHYSREVB.2.3645
M. Sorai, J. Ensling, K.M. Hasselbach, P. Gütlich, Mössbauer effect study on low-spin 1A1 ⇌ high spin 5T2 transition in [Fe(2-pic)3]Cl2: II. Influence of non-coordinating solvent molecule in [Fe(2-pic)3] Cl2 · X1 X = C2H5OH, CH3OH, H2O and 2H2O principles and practice of constraint programming. ,vol. 20, pp. 197- 208 ,(1977) , 10.1016/0301-0104(77)85023-4
Magnetism: Molecules to Materials IV Magnetism: Molecules to Materials IV. pp. 496- ,(2001) , 10.1002/9783527620548
I. V. Ovcharenko, Yu. G. Shvedenkov, R. N. Musin, V. N. Ikorskii, Determination of exchange interaction parameters in heterospin exchange clusters Journal of Structural Chemistry. ,vol. 40, pp. 29- 34 ,(1999) , 10.1007/BF02700774
Matvey V. Fedin, Sergey L. Veber, Igor A. Gromov, Victor I. Ovcharenko, Renad Z. Sagdeev, Arthur Schweiger, Elena G. Bagryanskaya, Electron paramagnetic resonance of three-spin nitroxide-copper(II)-nitroxide clusters coupled by a strong exchange interaction. Journal of Physical Chemistry A. ,vol. 110, pp. 2315- 2317 ,(2006) , 10.1021/JP0573792
Ksenia Maryunina, Sergey Fokin, Victor Ovcharenko, Galina Romanenko, Vladimir Ikorskii, Solid solutions: An efficient way to control the temperature of spin transition in heterospin crystals MxCu1 − x(hfac)2L (M = Mn, Ni, Co; L = nitronyl nitroxide) Polyhedron. ,vol. 24, pp. 2094- 2101 ,(2005) , 10.1016/J.POLY.2005.03.024
Fumiyasu Iwahori, Katsuya Inoue, Hiizu Iwamura, Synthesis and Magnetic Properties of Bis(Hexafluoroacetylacetonato)Copper(II) Complex with 5-Bromo-1,3-Phenylenebis(N-tert-Butylaminoxyl) as a Bridging Ligand Molecular Crystals and Liquid Crystals. ,vol. 334, pp. 533- 538 ,(1999) , 10.1080/10587259908023349
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
Marc Hostettler, Karl W. Törnroos, Dmitry Chernyshov, Brita Vangdal, Hans-Beat Bürgi, Challenges in Engineering Spin Crossover: Structures and Magnetic Properties of Six Alcohol Solvates of Iron(II) Tris(2‐picolylamine) Dichloride Angewandte Chemie. ,vol. 43, pp. 4589- 4594 ,(2004) , 10.1002/ANIE.200460736