Tetranuclear complexes in molecular magnetism: Targeted synthesis, high-field EPR and pulsed-field magnetization

被引：44

作者：

Chaudhuri, Phalguni ^{[1
]}

Kataev, Vladislav ^{[2
]}

Buechner, Bernd ^{[2
]}

Klauss, Hans-Henning ^{[3
]}

Kersting, Berthold ^{[4
]}

Meyer, Franc ^{[5
]}

机构：

[1] Max Planck Inst Bioanorgan Chem, D-45470 Mulheim, Germany

[2] IFW Dresden, Inst Solid State Phys, D-01069 Dresden, Germany

[3] Tech Univ Dresden, Inst Solid State Phys, D-01062 Dresden, Germany

[4] Univ Leipzig, Inst Anorgan Chem, D-04103 Leipzig, Germany

[5] Univ Gottingen, Inst Anorgan Chem, D-37077 Gottingen, Germany

来源：

COORDINATION CHEMISTRY REVIEWS | 2009年 / 253卷 / 19-20期

关键词：

Magnetic properties; Oligonuclear complexes; EPR spectroscopy; Metalloligands; Thiolate ligands; Bridging ligands; Pyrazolate ligands; Azide ligands; AMINE-THIOLATE COMPLEXES; CHELATING SIDE ARMS; NICKEL(II) COMPLEXES; GROUND-STATE; HETEROTRINUCLEAR COMPLEXES; CRYSTAL-STRUCTURE; METAL-COMPLEXES; BUILDING-BLOCKS; MAGNETOSTRUCTURAL CORRELATIONS; COBALT(II) COMPLEXES;

D O I：

10.1016/j.ccr.2009.03.024

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The present article reviews the synthetic approaches, the structures and the spectroscopic and magnetic properties of three different types of tetranuclear complexes: systems with metal/oximate metalloligands, tetranuclear complexes based on polydentate amine-thiophenolate ligands, and nickel/azido complexes with compartmental pyrazolate scaffolds. In all three cases, well-defined bimetallic entities have been used as building blocks for the controlled synthesis of higher-nuclearity systems. This has allowed one to modulate the magnetic properties of the tetrametallic cores and to specifically target low-spin or high-spin ground states. High-frequency high-field EPR and pulsed-field magnetization measurements have been used to experimentally determine spin Hamiltonian parameters and to probe the magnetic responses at high fields. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2261 / 2285

页数：25

共 129 条

[1]

Abragam A., 1970, ELECT PARAMAGNETIC R

[2] Compartmental pyrazolate ligands providing two adjacent tris(pyridylalkyl)amine-type binding pockets and their dicopper(II) fluoride complexes featuring extremely short intramolecular O-H•••F bridge [J].

Ackermann, J ;

Meyer, F ;

Pritzkow, H .

INORGANICA CHIMICA ACTA, 2004, 357 (12) :3703-3711

[3]

Ackermann J, 2002, CHEM-EUR J, V8, P247, DOI 10.1002/1521-3765(20020104)8:1<247::AID-CHEM247>3.0.CO

[4]

2-P

[5] Oligonuclear complexes as tectons in crystal engineering: structural diversity and magnetic properties [J].

Andruh, Marius .

CHEMICAL COMMUNICATIONS, 2007, (25) :2565-2577

[6] Synthesis of 3d metallic single-molecule magnets [J].

Aromi, Guillem ;

Brechin, Euan K. .

SINGLE-MOLECULE MAGNETS AND RELATED PHENOMENA, 2006, 122 :1-67

[7] Mono- and dinuclear transition metal complexes of the hexadentate ligand tris(4-tert-butyl-2-mercaptobenzyl)-1,4,7-triazacyclononane (L) [J].

Beissel, T ;

Glaser, T ;

Kesting, F ;

Wieghardt, K ;

Nuber, B .

INORGANIC CHEMISTRY, 1996, 35 (13) :3936-3947

[8]

Bencini A.Gatteschi., 1990, EPR of Exchange Coupled Systems

[9] Theoretical studies on the magnetic bistability of dinickel complex tuned by azide [J].

Bian, Jiangyu ;

Chang, Yingfei ;

Zhang, Jingping .

JOURNAL OF PHYSICAL CHEMISTRY A, 2008, 112 (14) :3186-3191

[10]

BILL E, 2005, PROGRAM JULX

← 1 2 3 4 5 6 7 8 9 10 →