Single-molecule magnets constructed from cyanometalates:: {[Tp*FeIII(CN)3MII(DMF)4]2[OTf]2}•2DMF (MII = Co, Ni)

被引：192

作者：

Li, DF

Parkin, S

Wang, GB

Yee, GT ^{[1
]}

Prosvirin, AV

Holmes, SM

机构：

[1] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA

[2] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

[3] Texas A&M Univ, College Stn, TX 77842 USA

来源：

INORGANIC CHEMISTRY | 2005年 / 44卷 / 14期

关键词：

D O I：

10.1021/ic048367i

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Treatment of several divalent transition-metal trifluoromethane-sultonates [M-II(OTf)(2); M-II = Mn, Co, Ni] with [NEt4][Tp*Fe-III(CN)(3)] [Tp* = hydridotris(3,5-dimethylpyrazol-1-yl)borate] in DMF affords three isostructural rectangular clusters of {Tp*Fe-III(CN)(3)M-II(DMF)(4)](2)-[OTf](2)1}-2DMF (M-II = Mn, Co, Ni,] stoichiometry. Magnetic studies of 3-5 indicate that the Tp*Fe(CN)(3)(-) centers are highly anisotropic and exhibit antiferromagnetic (3 and 4) and ferromagnetic (5) exchange to afford S = 4, 2, and 3 spin ground states, respectively. ac susceptibility measurements suggest that 4 and 5 exhibit incipient single-molecule magnetic behavior below 2 K.

引用

收藏

页码：4903 / 4905

页数：3

相关论文

共 39 条

[1] Photoinduced magnetization in a two-dimensional cobalt octacyanotungstate [J].

Arimoto, Y ;

Ohkoshi, S ;

Zhong, ZJ ;

Seino, H ;

Mizobe, Y ;

Hashimoto, K .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (31) :9240-9241

[2] A charge-transfer-induced spin transition in the discrete cyanide-bridged complex {[Co(tmphen)2]3[Fe(CN)6]2} [J].

Berlinguette, CP ;

Dragulescu-Andrasi, A ;

Sieber, A ;

Galán-Mascarós, JR ;

Güdel, HU ;

Achim, C ;

Dunbar, KR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (20) :6222-6223

[3] A trigonal-bipyramidal cyanide cluster with single-molecule-magnet behavior:: Synthesis, structure, and magnetic properties of {[MnII(tmphen)2]3[MnIII(CN)6]2} [J].

Berlinguette, CP ;

Vaughn, D ;

Cañada-Vilalta, C ;

Galán-Mascarós, JR ;

Dunbar, KR .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (13) :1523-1526

[4] MAGPACK1 a package to calculate the energy levels, bulk magnetic properties, and inelastic neutron scattering spectra of high nuclearity spin clusters [J].

Borrás-Almenar, JJ ;

Clemente-Juan, JM ;

Coronado, E ;

Tsukerblat, BS .

JOURNAL OF COMPUTATIONAL CHEMISTRY, 2001, 22 (09) :985-991

[5]

Caneschi A, 2001, ANGEW CHEM INT EDIT, V40, P1760, DOI 10.1002/1521-3773(20010504)40:9<1760::AID-ANIE17600>3.0.CO

[6]

2-U

[7]

Carlin R. L, 1986, MAGNETOCHEMISTRY

[8] Mixed-valence MnIIIMnIV clusters [Mn7O8(O2SePh)8(O2CMe)(H2O)] and [Mn7O8(O2SePh)9(H2O)]:: Single-chain magnets exhibiting quantum tunneling of magnetization [J].

Chakov, NE ;

Wernsdorfer, W ;

Abboud, KA ;

Christou, G .

INORGANIC CHEMISTRY, 2004, 43 (19) :5919-5930

[9] Raising the spin-reversal barrier in cyano-bridged single-molecule magnets:: Linear MnIII2MIII(CN)6 (M = Cr, Fe) species incorporating [(5-Brsalen)Mn]+ units [J].

Choi, HJ ;

Sokol, JJ ;

Long, JR .

INORGANIC CHEMISTRY, 2004, 43 (05) :1606-1608

[10] Evidence for single-chain magnet behavior in a MnIII-NiII chain designed with high spin magnetic units:: A route to high temperature metastable magnets [J].

Clérac, R ;

Miyasaka, H ;

Yamashita, M ;

Coulon, C .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (43) :12837-12844

← 1 2 3 4 →