Effect of coordination environment on the magnetic relaxation of mononuclear Dyill field-induced single molecule magnets

被引：8
作者：
Peng, Guo [1 ]
Zhang, Ying-Ying [1 ]
Li, Zhao-Yang [2 ]
机构：
[1] Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Jiangsu, Peoples R China
[2] Tohoku Univ, Grad Sch Sci, Dept Chem, Aoba Ku, 6-3 Aramaki Aza Aoba, Sendai, Miyagi 9808578, Japan
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2017年 / 77卷
基金：
中国国家自然科学基金;
关键词：
Single molecule magnet; Two-step relaxation; Pentagonal bipyramid; Triethylene glycol; CROWN-ETHER COMPLEXES; TRIETHYLENE GLYCOL COMPLEXES; DINUCLEAR COMPLEXES; ANISOTROPY BARRIER; LIGAND-FIELD; ION MAGNETS; BEHAVIOR; ENHANCEMENT; DYNAMICS;
D O I：
10.1016/j.inoche.2017.01.031
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Two mononuclear Dy-III complexes [Dy(H(2)TEG)(NO3)(3)].[18-crown-6] (H(2)TEG = triethylene glycol) (1) and IDY(H(2)TEG)CL3].[18-crown-6] (2) have been prepared using H(2)TEG as ligands. Magnetic studies revealed that both complexes show field-induced double magnetic relaxation behavior with energy barriers of 28 K and 54 K. Distinct magnetic dynamic properties observed in 1 and 2 are mostly attributed to the dissimilar coordination environments around Dy-III centers in these two complexes. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：40 / 43
页数：4
相关论文
共 39 条
[1]   Molecular spintronics using single-molecule magnets [J].
Bogani, Lapo ;
Wernsdorfer, Wolfgang .
NATURE MATERIALS, 2008, 7 (03) :179-186
[2]   Minimal distortion pathways in polyhedral rearrangements [J].
Casanova, D ;
Cirera, J ;
Llunell, M ;
Alemany, P ;
Avnir, D ;
Alvarez, S .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (06) :1755-1763
[3]   Enhancing Anisotropy Barriers of Dysprosium(III) Single-Ion Magnets [J].
Chen, Gong-Jun ;
Guo, Yun-Nan ;
Tian, Jin-Lei ;
Tang, Jinkui ;
Gu, Wen ;
Liu, Xin ;
Yan, Shi-Ping ;
Cheng, Peng ;
Liao, Dai-Zheng .
CHEMISTRY-A EUROPEAN JOURNAL, 2012, 18 (09) :2484-2487
[4]   Symmetry-Supported Magnetic Blocking at 20 K in Pentagonal Bipyramidal Dy(III) Single-Ion Magnets [J].
Chen, Yan-Cong ;
Liu, Jun-Liang ;
Ungur, Liviu ;
Liu, Jiang ;
Li, Quan-Wen ;
Wang, Long-Fei ;
Ni, Zhao-Ping ;
Chibotaru, Liviu F. ;
Chen, Xiao-Ming ;
Tong, Ming-Liang .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2016, 138 (08) :2829-2837
[5]   An electrostatic model for the determination of magnetic anisotropy in dysprosium complexes [J].
Chilton, Nicholas F. ;
Collison, David ;
McInnes, Eric J. L. ;
Winpenny, Richard E. P. ;
Soncini, Alessandro .
NATURE COMMUNICATIONS, 2013, 4
[6]   PHI: A powerful new program for the analysis of anisotropic monomeric and exchange-coupled polynuclear d- and f-block complexes [J].
Chilton, Nicholas F. ;
Anderson, Russell P. ;
Turner, Lincoln D. ;
Soncini, Alessandro ;
Murray, Keith S. .
JOURNAL OF COMPUTATIONAL CHEMISTRY, 2013, 34 (13) :1164-1175
[7]   Shape and spin state in four-coordinate transition-metal complexes:: The case of the d6 configuration [J].
Cirera, J ;
Ruiz, E ;
Alvarez, S .
CHEMISTRY-A EUROPEAN JOURNAL, 2006, 12 (11) :3162-3167
[8]   On Approaching the Limit of Molecular Magnetic Anisotropy: A Near-Perfect Pentagonal Bipyramidal Dysprosium(III) Single-Molecule Magnet [J].
Ding, You-Song ;
Chilton, Nicholas F. ;
Winpenny, Richard E. P. ;
Zheng, Yan-Zhen .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2016, 55 (52) :16071-16074
[9]   Syntheses, structures and magnetic properties of a series of mono- and di-nuclear dysprosium(III)-crown-ether complexes: effects of a weak ligand-field and flexible cyclic coordination modes [J].
Ding, You-Song ;
Han, Tian ;
Hu, Yue-Qiao ;
Xu, Minwei ;
Yang, Sen ;
Zheng, Yan-Zhen .
INORGANIC CHEMISTRY FRONTIERS, 2016, 3 (06) :798-807
[10]   Relaxation dynamics of dysprosium(III) single molecule magnets [J].
Guo, Yun-Nan ;
Xu, Gong-Feng ;
Guo, Yang ;
Tang, Jinkui .
DALTON TRANSACTIONS, 2011, 40 (39) :9953-9963
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