Coordination-tuned single-molecule-magnet behavior of TbIII-CuII dinuclear systems

被引：139

作者：

Kajiwara, Takashi ^{[1
,2
]}

Nakano, Motohiro ^{[3
]}

Takaishi, Shinya ^{[1
,2
]}

Yamashita, Masahiro ^{[1
,2
]}

机构：

[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Sendai, Miyagi 9808578, Japan

[2] Japan Sci & Technol Agcy JST, CREST, Aoba Ku, Sendai, Miyagi 9808578, Japan

[3] Osaka Univ, Grad Sch Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan

来源：

INORGANIC CHEMISTRY | 2008年 / 47卷 / 19期

关键词：

D O I：

10.1021/ic8013656

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Tb-III-Cu-II-based single-molecule magnet (SMM) and non-SMM were synthesized to investigate the relationship between magnetic anisotropy and the symmetry of the ligand field by the reaction of [TbCu(o-vanilate)(2)(NO3)(3)] with methoxypropylamine (MeOC3H6NH2, 1) or ethoxyethylamine (EtOC2H4NH2, 2). In both complexes, Tb-III ions have a bicapped square-antiprism coordination geometry. When the Tb-III ion is in a less symmetrical ligand field, it has an easy-axis anisotropy and shows SMM behavior, whereas when it is in a more symmetrical environment, it has an easy-plane anisotropy and exhibits non-SMM behavior.

引用

页码：8604 / 8606

页数：3

共 24 条

[1] A nonanuclear dysprosium (III)-copper(II) complex exhibiting single-molecule magnet behavior with very slow zero-field relaxation [J].

Aronica, Christophe ;

Pilet, Guillaume ;

Chastanet, Guillaume ;

Wernsdorfer, Wolfgang ;

Jacquot, Jean-Francois ;

Luneau, Dominique .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (28) :4659-4662

[2] Reduced anionic Mn12 molecules with half-integer ground states as single-molecule magnets [J].

Aubin, SMJ ;

Sun, ZM ;

Pardi, L ;

Krzystek, J ;

Folting, K ;

Brunel, LC ;

Rheingold, AL ;

Christou, G ;

Hendrickson, DN .

INORGANIC CHEMISTRY, 1999, 38 (23) :5329-5340

[3] NUCLEAR MAGNETIC-RESONANCE SHIFTS IN SOLUTION DUE TO LANTHANIDE IONS [J].

BLEANEY, B .

JOURNAL OF MAGNETIC RESONANCE, 1972, 8 (01) :91-&

[4] μSR study of organic systems:: ferromagnetism, antiferromagnetism, the spin-crossover effect, and fluctuations in magnetic nanodiscs [J].

Blundell, SJ ;

Pratt, FL ;

Lancaster, T ;

Marshall, IM ;

Steer, CA ;

Hayes, W ;

Sugano, T ;

Letard, JF ;

Caneschi, A ;

Gatteschi, D ;

Heath, SL .

PHYSICA B-CONDENSED MATTER, 2003, 326 (1-4) :556-562

[5] Linear trinuclear mixed-metal CoII-GdIII-CoII single-molecule magnet:: [L2Co2Gd][NO3]•2CHCl3 (LH3 = (S)P[N(Me)N=CH-C6H3-2-OH-3-OMe]3) [J].

Chandrasekhar, Vadapalli ;

Pandian, Balasubramanian Murugesa ;

Azhakar, Ramachandran ;

Vittal, Jagadese J. ;

Clerac, Rodolphe .

INORGANIC CHEMISTRY, 2007, 46 (13) :5140-5142

[6] A general route to strictly dinuclear Cu(II)/Ln(III) complexes. Structural determination and magnetic behavior of two Cu(II)/Gd(III) complexes [J].

Costes, JP ;

Dahan, F ;

Dupuis, A ;

Laurent, JP .

INORGANIC CHEMISTRY, 1997, 36 (16) :3429-3433

[7] Synthesis, structures, and magnetic properties of tetranuclear CuII-LnIII complexes [J].

Costes, JP ;

Auchel, M ;

Dahan, F ;

Peyrou, V ;

Shova, S ;

Wernsdorfer, W .

INORGANIC CHEMISTRY, 2006, 45 (05) :1924-1934

[8] Heterodinuclear Cu-Tb single-molecule magnet [J].

Costes, JP ;

Dahan, F ;

Wernsdorfer, W .

INORGANIC CHEMISTRY, 2006, 45 (01) :5-7

[9] Quantum tunneling of magnetization and related phenomena in molecular materials [J].

Gatteschi, D ;

Sessoli, R .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (03) :268-297

[10] Synthesis and magnetic property of copper(II)-lanthanide(III) complexes [{CuIILLnIII(o-van)(CH3COO)(MeOH)}2]•2H2O (LnIII = GdIII, TbIII, and DyIII;: H3L=1-(2-hydroxybenzamido)-2-(2-hydroxy-3-methoxybenzylideneamino)ethane;: o-van=3-methoxysalicylaldehydato) [J].

Hamamatsu, Takefumi ;

Yabe, Kazuya ;

Towatari, Masaaki ;

Matsumoto, Naohide ;

Re, Nazzareno ;

Pochaba, Andrzej ;

Mrozinski, Jerzy .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2007, 80 (03) :523-529

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