Strongest Exchange Coupling in Gadolinium(III) and Nitroxide Coordination Compounds

被引：56

作者：

Kanetomo, Takuya ^{[1
]}

Ishida, Takayuki ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Engn Sci, Chofu, Tokyo 1828585, Japan

来源：

INORGANIC CHEMISTRY | 2014年 / 53卷 / 20期

关键词：

MAGNETIC-PROPERTIES; FREE-RADICALS; OPTICAL-PROPERTIES; CRYSTAL-STRUCTURE; CHELATE LIGAND; COMPLEXES; NITRONYL; LANTHANIDE; IMINO; FERROMAGNETISM;

D O I：

10.1021/ic501496a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The largest antiferromagnetic coupling parameter was characterized to be 2J/k(B) = -15.9(2) K in [Gd(hfac)(3)(6bpyNO)], where 6bpyNO stands for 2,2'-bipyridin-6-yl tert-butyl nitroxide. This molecule was designed according to the empirical relation: more planar chelate favors stronger antiferromagnetic coupling. The Gd-Orad bond is relatively short owing to the tridentate character.

引用

页码：10794 / 10796

页数：3

共 35 条

[1] CRYSTAL-STRUCTURE AND MAGNETIC-PROPERTIES OF [LN2CU4] HEXANUCLEAR CLUSTERS (WHERE LN = TRIVALENT LANTHANIDE) - MECHANISM OF THE GD(III)-CU(II) MAGNETIC INTERACTION [J].

ANDRUH, M ;

RAMADE, I ;

CODJOVI, E ;

GUILLOU, O ;

KAHN, O ;

TROMBE, JC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (05) :1822-1829

[2] GADOLINIUM(III) COMPLEXES WITH PYRIDINE-SUBSTITUTED NITRONYL NITROXIDE RADICALS [J].

BENELLI, C ;

CANESCHI, A ;

GATTESCHI, D ;

PARDI, L .

INORGANIC CHEMISTRY, 1992, 31 (05) :741-746

[3] Molecular engineering for single-chain-magnet behavior in a one-dimensional dysprosium-nitronyl nitroxide compound [J].

Bogani, L ;

Sangregorio, C ;

Sessoli, R ;

Gatteschi, D .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (36) :5817-5821

[4] STUDIES OF FREE RADICALS .2. CHEMICAL PROPERTIES OF NITRONYLNITROXIDES . A UNIQUE RADICAL ANION [J].

BOOCOCK, DGB ;

DARCY, R ;

ULLMAN, EF .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1968, 90 (21) :5945-&

[5]

Caneschi A, 2000, ANGEW CHEM INT EDIT, V39, P246, DOI 10.1002/(SICI)1521-3773(20000103)39:1<246::AID-ANIE246>3.3.CO

[6]

2-2

[7] A 24-Gd nanocapsule with a large magnetocaloric effect [J].

Chang, Li-Xian ;

Xiong, Gang ;

Wang, Li ;

Cheng, Peng ;

Zhao, Bin .

CHEMICAL COMMUNICATIONS, 2013, 49 (11) :1055-1057

[8] Is ferromagnetism an intrinsic property of the CuII/GdIII couple?: 1.: Structures and magnetic properties of two novel dinuclear complexes with a μ-phenolato-μ-oximato (Cu,Gd) core [J].

Costes, JP ;

Dahan, F ;

Dupuis, A ;

Laurent, JP .

INORGANIC CHEMISTRY, 2000, 39 (02) :169-173

[9] Cryogenic Magnetocaloric Effect in a Ferromagnetic Molecular Dimer [J].

Evangelisti, Marco ;

Roubeau, Olivier ;

Palacios, Elias ;

Camon, Agustin ;

Hooper, Thomas N. ;

Brechin, Euan K. ;

Alonso, Juan J. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (29) :6606-6609

[10] Magnetic exchange in {GdIII-radical} complexes: method assessment, mechanism of coupling and magneto-structural correlations [J].

Gupta, Tulika ;

Rajeshkumar, Thayalan ;

Rajaraman, Gopalan .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (28) :14568-14577

← 1 2 3 4 →