A single molecule magnet (SMM) with a helicate structure

被引：56

作者：

Novitchi, Ghenadie ^{[2
]}

Costes, Jean-Pierre ^{[1
]}

Tuchagues, Jean-Pierre ^{[1
]}

Vendier, Laure ^{[1
]}

Wernsdorfer, Wolfgang ^{[3
]}

机构：

[1] Univ Toulouse 3, Chim Coordinat Lab, CNRS,UPR 8241, Inst Natl Polytech Toulouse, F-31077 Toulouse, France

[2] Moldavian Acad Sci, Inst Chem, Kishinev 2028, Moldova

[3] CNRS & UJP, Inst Neel, F-38042 Grenoble, France

来源：

NEW JOURNAL OF CHEMISTRY | 2008年 / 32卷 / 02期

关键词：

D O I：

10.1039/b716283a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The X-ray structure determination of [L2Cu2Gd2(NO3)(6)(H2O)(2)]-(0.5H(2)O) (L = bis-[(2-hydroxy-3-ethoxyphenyl) methylene]4,4'- methylenedianiline) confirms the existence of a tetranuclear double-stranded homotopic and unsaturated helicate. In each Cu - Gd pair, the reduced Cu center dot center dot center dot Gd distance allows ferromagnetic Cu - Gd superexchange interactions through two phenoxo oxygen atoms. Replacement of gadolinium ions by terbium ions yields the first example of a helicate behaving as a single molecule magnet (SMM).

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页码：197 / 200

页数：4

相关论文

共 23 条

[1] Discriminating between lanthanide ions:: self-assembly of heterodimetallic triple-stranded helicates [J].

André, N ;

Scopelliti, R ;

Hopfgartner, G ;

Piguet, C ;

Bünzli, JCG .

CHEMICAL COMMUNICATIONS, 2002, (03) :214-215

[2]

BERNARDINELLI G, 1992, ANGEW CHEM INT EDIT, V31, P1622

[3] COORDINATION CHEMISTRY OF MICROBIAL IRON TRANSPORT COMPOUNDS .10. CHARACTERIZATION OF COMPLEXES OF RHODOTORULIC ACID, A DIHYDROXAMATE SIDEROPHORE [J].

CARRANO, CJ ;

RAYMOND, KN .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1978, 100 (17) :5371-5374

[4] 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

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

Costes, JP ;

Dahan, F ;

Wernsdorfer, W .

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

[6]

CUCOS P, INORG CHEM, V45, P7035

[7] 5-CO-ORDINATE COPPER(2) COMPLEXES OF QUADRIDENTATE SCHIFF-BASE LIGAND NN'-BIS-(2-PYRIDYLMETHYLENE)ETHANE-1,2-DIAMINE AND SOME RELATED LIGANDS [J].

HARRIS, CM ;

MCKENZIE, ED .

JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1969, (05) :746-&

[8] Aggregation of metallo-supramolecular architectures by metallo-assembled hydrogen bonding [J].

Lavalette, A ;

Tuna, F ;

Clarkson, G ;

Alcock, NW ;

Hannon, MJ .

CHEMICAL COMMUNICATIONS, 2003, (21) :2666-2667

[9]

Lehn J-M., 1995, Supramolecular Chemistry: Concepts and Prospectives, DOI 10.1002/3527607439

[10] SPONTANEOUS ASSEMBLY OF DOUBLE-STRANDED HELICATES FROM OLIGOBIPYRIDINE LIGANDS AND COPPER(I) CATIONS - STRUCTURE OF AN INORGANIC DOUBLE HELIX [J].

LEHN, JM ;

RIGAULT, A ;

SIEGEL, J ;

HARROWFIELD, J ;

CHEVRIER, B ;

MORAS, D .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1987, 84 (09) :2565-2569