Magnetic Properties in Mononuclear Gadolinium(III) and Terbium(III) Complexes Based on Ethoxylphenyl- substituted Nitronyl Nitroxide Radical and Hexafluoroacetylacetonate Ligand

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摘要

Two new lanthanide complexes with ethoxybenzene-substituted nitronyl nitroxide radical (NIT-C8H9O) and hexafluoroacetylacetonate (hfac) ligand, [Gd(NIT-C8H9O)2(hfac)3]•C7H16 (1) and [Tb(NIT-C8H9O)2(hfac)3]•C7H16 (2), have been successfully synthesized and characterized by IR spectroscopy, elemental analyses, thermogravimetry analyses, and single-crystal X-ray diffraction. Both 1 and 2 exhibit a mononuclear structure in which the nitronyl nitroxide radical and hfac ligand act as monodentate and bidentate chelating modes, respectively. Magnetic studies show that ferromagnetic interactions (between intramolecular Gd and radical) and antiferromagnetic interactions (between the intramolecular radicals) coexist in complex 1. No obvious frequency dependent out-of-phase signals were observed in complex 2.

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	马德运
	肖俊霞
	郭海福
	梁韵秋
	颜晶晶
	林伟杰
	丁晚秋

关键词 ： lanthanide complexes, characterization, radicals, magnetism

Abstract：

Key words： lanthanide complexes characterization radicals magnetism

收稿日期: 2015-07-09 出版日期: 2016-03-11

基金资助:

This work was supported by the special funds of Guangdong college students' scientific and technological innovation cultivation (pdjh2015a0562), the Natural Science Foundation of Guangdong Province (2015A030310407), the Natural Science Foundation of Zhaoqing University (201532) and the Project of Provincial Key Platform of Guangdong Province (2014KTSPT040)

通讯作者: mady@zqu.edu.cn E-mail: mady@zqu.edu.cn

引用本文:

马德运;肖俊霞;郭海福;梁韵秋;颜晶晶;林伟杰;丁晚秋. Magnetic Properties in Mononuclear Gadolinium(III) and Terbium(III) Complexes Based on Ethoxylphenyl- substituted Nitronyl Nitroxide Radical and Hexafluoroacetylacetonate Ligand[J]. 结构化学, 2016, 35(3): 361-371.
MA De-Yun;XIAO Jun-Xia;GUO Hai-Fu;LIANG Yun-Qiu;YAN Jing-Jing;LIN Wei-Jie;DING Wan-Qiu. Magnetic Properties in Mononuclear Gadolinium(III) and Terbium(III) Complexes Based on Ethoxylphenyl- substituted Nitronyl Nitroxide Radical and Hexafluoroacetylacetonate Ligand. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2016, 35(3): 361-371.

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http://manu30.magtech.com.cn/jghx/CN/ 或 http://manu30.magtech.com.cn/jghx/CN/Y2016/V35/I3/361

REFERENCES
(1) Troiani, F.; Affronte, M. Molecular spins for quantum information technologies. Chem. Soc. Rev. 2011, 40, 3119–3129.
(2) Leuenberger, M. N.; Loss, D. Quantum computing in molecular magnets. Nature 2001, 410, 789–793.
(3) Ganzhorn, M.; Klyatskaya, S.; Ruben, M.; Wernsdorfer, W. Strong spin-phonon coupling between a single-molecule magnet and a carbon nanotube nanoelectromechanical system. Nature Nanotech. 2012, 8, 165–169.
(4) Bogani, L.; Wernsdorfer, W. Molecular spintronics using single-molecule magnets. Nature Mater. 2008, 7, 179–186.
(5) Lin, S. Y.; Wernsdorfer, W.; Ungur, L.; Powell, A. K.; Guo, Y. N.; Tang, J.; Zhao, L.; Chibotaru, L. F.; Zhang, H. J. Coupling Dy3 triangles to maximize the toroidal moment. Angew. Chem. Int. Ed. 2012, 51, 12939–12943.
(6) Ungur, L.; Lin, S. Y.; Tang, J. K.; Chibotaru, L. F. Single-molecule toroics in ising-type lanthanide molecular clusters. Chem. Soc. Rev. 2014, 43, 6894–6905.
(7) Mei, X. L.; Liu, R. N.; Wang, C.; Yang, P. P.; Li, L. C.; Liao, D. Z. Modulating spin dynamics of cyclic LnIII-radical complexes (LnIII = Tb, Dy) by using phenyltrifluoroacetylacetonate coligand. Dalton Trans. 2012, 41, 2904–2909.
(8) Bernot, K.; Pointillart, F.; Rosa, P.; Etienne, M.; Sessoli, R.; Gatteschi, D. Single molecule magnet behaviour in robust dysprosium-biradical complexes. Chem. Comm. 2010, 46, 6458–6460.
(9) Fatila, E. M.; Rouzieres, M.; Jennings, M. C.; Lough, A. J.; Clerac, R.; Preuss, K. E. Fine-tuning the single-molecule magnet properties of a [Dy(III)-radical]2 pair. J. Am. Chem. Soc. 2013, 135, 9596–9599.
(10) Demir, S.; Zadrozny, J. M.; Nippe, M.; Long, J. R. Exchange coupling and magnetic blocking in bipyrimidyl radical-bridged dilanthanide complexes. J. Am. Chem. Soc. 2012, 134, 18546–18549.
(11) Escobar, L. B. L.; Gueder, G. P.; Soriano, S.; Speziali, N. L.; Jordao, A. K.; Cunha, A. C.; Ferreira, V. F.; Maxim, C.; Novak, M. A.; Andruh, M.; Vaz, M. G. F. New families of hetero-tri-spin 2p-3d-4f complexes: synthesis, crystal structures, and magnetic properties. Inorg. Chem. 2014, 53, 7508–7517.
(12) Wang, X. F.; Hu, P.; Li, Y. G.; Li, L. C. Construction of nitronyl nitroxide-based 3d-4f clusters: structure and magnetism. Chem. Asian J. 2015, 10, 325–328.
(13) Li, L. L.; Liu, S.; Zhang, Y.; Shi, W.; Cheng, P. Three new mononuclear tri-spin lanthanide nitronyl nitroxide radical compounds: syntheses, structures and magnetic properties. Dalton Trans. 2015, 44, 6118–6125.
(14) Ullman, E. F.; Osiecki, J. H.; Boocock, D. G. B.; Darcy, R. Stable free radicals. X. Nitronyl nitroxide monoradicals and biradicals as possible small molecule spin labels. J. Am. Chem. Soc. 1972, 94, 7049–7059.
(15) Bruker. APEXII software, Version 6.3.1, Bruker AXS Inc, Madison, Wisconsin, USA (2004).
(16) Parkin, S.; Moezzi, B.; Hope, H. XABS2: an empirical absorption correction program. J. Appl. Cryst. 1995, 28, 53–56.
(17) Sheldrick, G. M. A short history of SHELX Acta. Cryst. 2008, A64, 112–122.
(18) Spek, A. L. PLATON, A Multipurpose Crystallographic Tool. Utrecht University: Utrecht, The Netherlands (2005).
(19) Wang, X. L. Five new tri-spin lanthanide-nitronyl nitroxide (LnIII = GdIII, TbIII, DyIII, HoIII, ErIII) complexes: structures and magnetic properties. Inorg. Chim. Acta 2012, 387, 20–24.
(20) Benelli, C.; Caneschi, A.; Gatteschi, D.; Laugier, J.; Rey, P. Structure and magnetic properties of a gadolinium hexafluoroacetylacetonate adduct with the radical 4,4,5,5-tetramethyl-2-phenyl-4, 5-dihydro-1H-imidazole 3-oxide 1-oxyl. Angew. Chem. Int. Ed. 1987, 26, 913–917.
(21) Kahn, M. L.; Sutter J. P.; Golhen, S.; Guionneau, P.; Ouahab, L.; Kahn O.; Chasseau, D. Systematic investigation of the nature of the coupling between a Ln(III) ion (Ln = Ce(III) to Dy(III)) and its aminoxyl radical ligands. Structural and magnetic characteristics of a series of {Ln(organic radical)2} compounds and the related {Ln(Nitrone)2} derivatives. J. Am. Chem. Soc. 2000, 122, 3413–3421.
(22) Meng, Z. S.; Liu, J. L.; Leng, J. D.; Guo, F. S.; Tong, M. L. Linear trinuclear MnII-LnIII-MnII clusters via the “compartmentalized ligand” approach: synthesis, structures and magnetic properties. Polyhedron 2011, 30, 3095–3099.
(23) Hu, P.; Sun, Z.; Wang, X.; Li, L.; Liao, D.; Luneau, D. Magnetic relation in mononuclear Tb complex involving a nitronyl nitroxide ligand. New J. Chem. 2014, 38, 4716–4721.
(24) Du, F. X.; Hu, P.; Gao, Y. Y.; Xiao, F. P.; Wu, Y. N. A hydroxyl-containing nitronyl nitroxide radical and its Gd(III), Tb(III), Dy(III) complexes: synthesis, structure and magnetic properties. Inorg. Chem. Commun. 2014, 48, 166–170.
(25) Zhang, C. X.; Qiao, X. M.; Kong, Y. K.; Wang, B.; Zhang, Y. Y.; Wang, Q. L. Two Lanthanide-nitronyl nitroxide radicals compounds with slow magnetic relaxation behavior. Journal of Molecular Structure 2015, 1081, 348–354.