LnIII-CoII heterometallic chains based on pyridine substituted nitronyl nitroxides
作者： Xiufeng Wang , Hongdao Li , Juan Sun , Meng Yang , Cun Li
DOI: 10.1039/C6NJ03849B
关键词:
摘要: Four novel nitronyl nitroxide bridged heterometallic one-dimensional chains, [Ln(hfac)3Co(hfac)2(NIT-4py)2] (LnIII = Y 1, Gd 2, Dy 3) and [Dy(hfac)3Co(hfac)2(NIT-3py)2] 4 (hfac hexafluoroacetylacetonate; NIT-4py 2-(4-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide; NIT-3py 2-(3-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide), have been prepared characterized. Complexes 1–4 exhibit a 1D chain structure in which Ln(hfac)3 Co(hfac)2 units are linked by pyridine substituted nitroxides through the NO groups of radicals nitrogen atoms rings. represent first examples 2p–3d–4f compounds containing Co(II) ions. The magnetic properties these were investigated. behavior Y(III)–Co(II) complex has analyzed using an appropriate model, indicates antiferromagnetic interaction between ion radical. ac susceptibility measurements compound display slow relaxation its magnetization.
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sci-hub.se 参考文章(53)
Peng Hu, Zan Sun, Xiufeng Wang, Licun Li, Daizheng Liao, Dominique Luneau, Magnetic relaxation in mononuclear Tb complex involving a nitronyl nitroxide ligand New J. Chem.. ,vol. 38, pp. 4716- 4721 ,(2014) , 10.1039/C4NJ00627E
Wai-Fun Yeung, Pui-Ha Lau, Tai-Chu Lau, Hai-Yan Wei, Hao-Ling Sun, Song Gao, Zhi-Da Chen, Wing-Tak Wong, Heterometallic MIIRuIII2 compounds constructed from trans-[Ru(Salen)(CN)2]- and trans-[Ru(Acac)2(CN)2]-. Synthesis, structures, magnetic properties, and density functional theoretical study. Inorganic Chemistry. ,vol. 44, pp. 6579- 6590 ,(2005) , 10.1021/IC0506456
Yun-He Xu, Xiao-Ni Qu, Hai-Bin Song, Li-Cun Li, Zong-Hui Jiang, Dai-Zheng Liao, Metal–radical complexes [M(NITm-Py)2(N3)2(DMSO)2] [M = Cu(II), Ni(II), Co(II)]: Syntheses, crystal structures and magnetic properties Polyhedron. ,vol. 26, pp. 741- 747 ,(2007) , 10.1016/J.POLY.2006.08.036
Mei Zhu, Juanjuan Wang, Meng Yang, Yue Ma, Licun Li, Slow magnetic relaxation in two-dimensional 3d-4f complexes based on phenyl pyrimidyl substituted nitronyl nitroxide radicals. Dalton Transactions. ,vol. 44, pp. 9815- 9822 ,(2015) , 10.1039/C4DT03330B
Shutaro Osa, Takafumi Kido, Naohide Matsumoto, Nazzareno Re, Andrzej Pochaba, Jerzy Mrozinski, A tetranuclear 3d-4f single molecule magnet: [CuIILTbIII(hfac)2]2. Journal of the American Chemical Society. ,vol. 126, pp. 420- 421 ,(2004) , 10.1021/JA037365E
C. Benelli, A. Caneschi, D. Gatteschi, L. Pardi, P. Rey, D. P. Shum, R. L. Carlin, Magnetic properties of lanthanide complexes with nitronyl nitroxides Inorganic Chemistry. ,vol. 28, pp. 272- 275 ,(1989) , 10.1021/IC00301A023
Xiufeng Wang, Yungai Li, Peng Hu, Juanjuan Wang, Licun Li, Slow magnetic relaxation and field-induced metamagnetism in nitronyl nitroxide-Dy(iii) magnetic chains Dalton Transactions. ,vol. 44, pp. 4560- 4567 ,(2015) , 10.1039/C4DT01878H
Hai-Xia Wei, Yi-Wen Chen, Dong-Zhao Gao, Ya-Qiu Sun, Guo-Ying Zhang, Yan-Yan Xu, Syntheses, structures and magnetic properties of three 1-D chain metal–nitroxide coordination polymers bridged by e,e-trans-1,4-cyclohexanedicarboxylate Inorganica Chimica Acta. ,vol. 375, pp. 298- 304 ,(2011) , 10.1016/J.ICA.2011.05.026
Haixia Tian, Ruina Liu, Xiaoling Wang, Peipei Yang, Zuoxi Li, Licun Li, Daizheng Liao, Magnetic Slow Relaxation in Cyclic TbIII-Nitronyl Nitroxide Radical Complexes European Journal of Inorganic Chemistry. ,vol. 2009, pp. 4498- 4502 ,(2009) , 10.1002/EJIC.200900584
David Casanova, Miquel Llunell, Pere Alemany, Santiago Alvarez, The Rich Stereochemistry of Eight‐Vertex Polyhedra: A Continuous Shape Measures Study Chemistry: A European Journal. ,vol. 11, pp. 1479- 1494 ,(2005) , 10.1002/CHEM.200400799