Lanthanide-radical linear chain compounds based on 2,4,4,5,5-pentamethylimidazoline-1-oxyl-3-oxide: Structure and magnetic properties

被引：20

作者：

Hu, Peng ^{[1
,2
]}

Zhang, Congming ^{[1
,2
]}

Gao, Yuanyuan ^{[1
,2
]}

Li, Yungai ^{[1
,2
]}

Ma, Yue ^{[1
,2
,3
]}

Li, Licun ^{[1
,2
]}

Liao, Daizheng ^{[1
,2
]}

机构：

[1] Nankai Univ, Dept Chem, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China

[2] Nankai Univ, Tianjin Key Lab Met & Mol Based Mat Chem, Tianjin 300071, Peoples R China

[3] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

INORGANICA CHIMICA ACTA | 2013年 / 398卷

基金：

中国国家自然科学基金;

关键词：

Nitronyl nitroxide radical; Lanthanide; Single-chain magnets; Crystal structure; NITROXIDE CHAINS; COMPLEXES; BEHAVIOR; COORDINATION; DESIGN; COBALT;

D O I：

10.1016/j.ica.2012.12.025

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two one-dimensional nitronyl nitroxide-lanthanide complexes[Ln(hfac)(3) (NITMe)](n) (Ln(III) = Y (1), Dy(2), hfac = hexafluoroacetylacetonate; NITMe = 2,4,4,5,5-pentamethylimidazolyl-1-oxyl-3-oxide) have been successfully prepared and characterized. Single crystal X-ray crystallographic analysis reveals that complexes 1 and 2 show similar linear chain structures composed of Ln(hfac)(3) units bridged by NITMe radicals through their NO groups. Variable-temperature magnetic susceptibilities of Y complex show that there exists weak antiferromagnetic coupling between the radical ligands through the diamagnetic Y(III) ions. Alternating current (ac) susceptibilities of Dy complex reveal frequency dependent out-of-phase signals, indicating that it behaves as single-chain magnet. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：136 / 140

页数：5

共 35 条

[1] Persistent Metal Bis(Hexafluoroacetylacetonato) Complexes Featuring a 2,2′-Bipyridine Substituted Triarylamminium Radical Cation [J].

Adugna, Sharew ;

Revunova, Kseniya ;

Djukic, Brandon ;

Gorelsky, Serge I. ;

Jenkins, Hilary A. ;

Lemaire, Martin T. .

INORGANIC CHEMISTRY, 2010, 49 (21) :10183-10190

[2] Low-temperature thermodynamic properties of molecular magnetic chains [J].

Affronte, M ;

Caneschi, A ;

Cucci, C ;

Gatteschi, D ;

Lasjaunias, JC ;

Paulsen, C ;

Pini, MG ;

Rettori, A ;

Sessoli, R .

PHYSICAL REVIEW B, 1999, 59 (09) :6282-6293

[3] Effect of chiral domain walls on the specific heat of Gd(hfac)(3)NITR (R equals ethyl, isopropyl, methyl, phenyl) molecular magnetic chains [J].

Bartolome, F ;

Bartolome, J ;

Benelli, C ;

Caneschi, A ;

Gatteschi, D ;

Paulsen, C ;

Pini, MG ;

Rettori, A ;

Sessoli, R ;

Volokitin, Y .

PHYSICAL REVIEW LETTERS, 1996, 77 (02) :382-385

[4] Magnetostructural correlations in the tetranuclear series of {Fe3LnO2} butterfly core clusters: Magnetic and Moumlssbauer spectroscopic study [J].

Bartolome, J. ;

Filoti, G. ;

Kuncser, V. ;

Schinteie, G. ;

Mereacre, V. ;

Anson, C. E. ;

Powell, A. K. ;

Prodius, D. ;

Turta, C. .

PHYSICAL REVIEW B, 2009, 80 (01)

[5] Loops, Chains, Sheets, and Networks from Variable Coordination of Cu(hfac)2 with a Flexibly Hinged Aminoxyl Radical Ligand [J].

Baskett, Martha ;

Paduan-Filho, Armando ;

Oliveira, Nei Fernandes, Jr. ;

Chandrasekaran, A. ;

Mague, Joel T. ;

Lahti, Paul M. .

INORGANIC CHEMISTRY, 2011, 50 (11) :5060-5074

[6]

Benelli A., 1989, INORG CHEM, V28, P3230

[7] LINEAR-CHAIN GADOLINIUM(III) NITRONYL NITROXIDE COMPLEXES WITH DOMINANT NEXT-NEAREST-NEIGHBOR MAGNETIC-INTERACTIONS [J].

BENELLI, C ;

CANESCHI, A ;

GATTESCHI, D ;

PARDI, L ;

REY, P .

INORGANIC CHEMISTRY, 1990, 29 (21) :4223-4228

[8] STRUCTURE AND MAGNETIC-PROPERTIES OF LINEAR-CHAIN COMPLEXES OF RARE-EARTH IONS (GADOLINIUM, EUROPIUM) WITH NITRONYL NITROXIDES [J].

BENELLI, C ;

CANESCHI, A ;

GATTESCHI, D ;

PARDI, L ;

REY, P .

INORGANIC CHEMISTRY, 1989, 28 (02) :275-280

[9] MAGNETIC-INTERACTIONS AND MAGNETIC-ORDERING IN RARE-EARTH-METAL NITRONYL NITROXIDE CHAINS [J].

BENELLI, C ;

CANESCHI, A ;

GATTESCHI, D ;

SESSOLI, R .

INORGANIC CHEMISTRY, 1993, 32 (22) :4797-4801

[10] A family of rare-earth-based single chain magnets: Playing with anisotropy [J].

Bernot, Kevin ;

Bogani, Lapo ;

Caneschi, Andrea ;

Gatteschi, Dante ;

Sessoli, Roberta .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (24) :7947-7956

← 1 2 3 4 →