Predictable self-assembled [2 x 2] Ln(III)4 square grids (Ln = Dy,Tb)-SMM behaviour in a new lanthanide cluster motif

被引：151
作者：
Anwar, Muhammad Usman [1 ]
Thompson, Laurence Kenneth [1 ]
Dawe, Louise Nicole [1 ]
Habib, Fatemah [2 ]
Murugesu, Muralee [2 ]
机构：
[1] Mem Univ Newfoundland, Dept Chem, St John, NF A1B 3X7, Canada
[2] Univ Ottawa, Dept Chem, Ottawa, ON K1N 6N5, Canada
来源：
CHEMICAL COMMUNICATIONS | 2012年 / 48卷 / 38期
基金：
加拿大自然科学与工程研究理事会;
关键词：
SINGLE-MOLECULE-MAGNET; MAGNETOSTRUCTURAL CORRELATIONS; AZIDE BRIDGE; COMPLEXES; EXCHANGE; LIGANDS;
D O I：
10.1039/c2cc17546k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The ditopic carbohydrazone ligand (L1) produces the square, self-assembled [2 x 2] grids [Dy-4(L1)(4)(OH)(4)]Cl-2 (1) and [Ln(4)(L1)(4)(mu(4)-O)(mu(2)-1,1-N-3)(4)] (Ln = Dy (2), Tb (3)), with 2 exhibiting SMM behaviour. Two relaxation processes occur with U-eff = 51 K, 91 K in the absence of an external field, and one with U-eff = 270 K in the presence of a 1600 Oe optimum field.
引用
收藏
页码：4576 / 4578
页数：3
相关论文
共 21 条
  • [1] Anwar M.U., UNPUB
  • [2] Lanthanide Complexes of Tritopic Bis(hydrazone) Ligands: Single-Molecule Magnet Behavior in a Linear Dy3III Complex
    Anwar, Muhammad U.
    Tandon, Santokh S.
    Dawe, Louise N.
    Habib, Fatemah
    Murugesu, Muralee
    Thompson, Laurence K.
    [J]. INORGANIC CHEMISTRY, 2012, 51 (02) : 1028 - 1034
  • [3] Single Pyramid Magnets: Dy5 Pyramids with Slow Magnetic Relaxation to 40 K
    Blagg, Robin J.
    Muryn, Christopher A.
    McInnes, Eric J. L.
    Tuna, Floriana
    Winpenny, Richard E. P.
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (29) : 6530 - 6533
  • [4] RELATIONSHIP BETWEEN SINGLET-TRIPLET SPLITTING AND CU-O-CU BRIDGE ANGLE IN HYDROXO-BRIDGED COPPER DIMERS
    CRAWFORD, VH
    RICHARDSON, HW
    WASSON, JR
    HODGSON, DJ
    HATFIELD, WE
    [J]. INORGANIC CHEMISTRY, 1976, 15 (09) : 2107 - 2110
  • [5] Magnetic [n x n] (n=2-5) Grids by Directed Self-Assembly
    Dawe, Louise N.
    Shuvaev, Konstantin V.
    Thompson, Laurence K.
    [J]. INORGANIC CHEMISTRY, 2009, 48 (08) : 3323 - 3341
  • [6] Polytopic ligand directed self-assembly-polymetallic [n x n] grids versus non-grid oligomers
    Dawe, Louise N.
    Shuvaev, Konstantin V.
    Thompson, Laurence K.
    [J]. CHEMICAL SOCIETY REVIEWS, 2009, 38 (08) : 2334 - 2359
  • [7] Strong Axiality and Ising Exchange Interaction Suppress Zero-Field Tunneling of Magnetization of an Asymmetric Dy2 Single-Molecule Magnet
    Guo, Yun-Nan
    Xu, Gong-Feng
    Wernsdorfer, Wolfgang
    Ungur, Liviu
    Guo, Yang
    Tang, Jinkui
    Zhang, Hong-Jie
    Chibotaru, Liviu F.
    Powell, Annie K.
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (31) : 11948 - 11951
  • [8] Coupling Dy3 Triangles Enhances Their Slow Magnetic Relaxation
    Hewitt, Ian J.
    Tang, Jinkui
    Madhu, N. T.
    Anson, Christopher E.
    Lan, Yanhua
    Luzon, Javier
    Etienne, Mael
    Sessoli, Roberta
    Powell, Annie K.
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (36) : 6352 - 6356
  • [9] A Polynuclear Lanthanide Single-Molecule Magnet with a Record Anisotropic Barrier
    Lin, Po-Heng
    Burchell, Tara J.
    Ungur, Liviu
    Chibotaru, Liviu F.
    Wernsdorfer, Wolfgang
    Murugesu, Muralee
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (50) : 9489 - 9492
  • [10] Single-Molecule Magnet Behavior for an Antiferromagnetically Superexchange-Coupled Dinuclear Dysprosium(III) Complex
    Long, Jerome
    Habib, Fatemah
    Lin, Po-Heng
    Korobkov, Ilia
    Enright, Gary
    Ungur, Liviu
    Wernsdorfer, Wolfgang
    Chibotaru, Liviu F.
    Murugesu, Muralee
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (14) : 5319 - 5328
123