A cationic tetranuclear [NiII4(MeOH)2(pko)6]2+ cluster showing antiferro- and ferromagnetic features

被引:20
作者
Alexiou, M
Dendrinou-Samara, C
Raptopoulou, CP
Terzis, A
Tangoulis, V [1 ]
Kessissoglou, DP
机构
[1] Aristotle Univ Thessaloniki, Fac Chem, Dept Gen & Inorgan Chem, Thessaloniki 54124, Greece
[2] NCSR Demokritos, Inst Mat Sci, GR-15310 Athens, Greece
[3] Univ Patras, Dept Mat Sci, GR-26500 Patras, Greece
关键词
cluster compounds; magnetic properties; oximato ligands; nickel;
D O I
10.1002/ejic.200400172
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The majority of reported nickel tetranuclear clusters have a dicubane-like structural core. The compound presented here is the second example possessing an Ni4O2 core based on a chair or butterfly "out-of-face" topology. This compound also belongs to the family of compounds characterized as metallacrowns with an [Ni-N-O-](n) linkage and is the only example with three Ni-O-N-Ni strands bridging the nickel atoms. The values obtained from the fitting procedure are J(1) = 55.8 cm(-1), J(2) = -67.2 cm(-1), g = 2.2, p = 1.1%. These values suggest the presence of both ferromagnetic and antiferromagnetic interactions, while a small paramagnetic impurity is also present. This magnetic behaviour with antiferromagnetic internal coupling and ferromagnetic spin-alignment is the second example in the literature and the first in the metallacrown family. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
引用
收藏
页码:3822 / 3827
页数:6
相关论文
共 56 条
[21]   BIOMIMETIC CHEMISTRY OF NICKEL [J].
HALCROW, MA ;
CHRISTOU, G .
CHEMICAL REVIEWS, 1994, 94 (08) :2421-2481
[22]   THE CRYSTAL-STRUCTURE OF UREASE FROM KLEBSIELLA-AEROGENES [J].
JABRI, E ;
CARR, MB ;
HAUSINGER, RP ;
KARPLUS, PA .
SCIENCE, 1995, 268 (5213) :998-1004
[23]   Pseudohalide complexation by manganese 12-metallacrowns-4 complexes [J].
Kessissoglou, DP ;
Bodwin, JJ ;
Kampf, J ;
Dendrinou-Samara, C ;
Pecoraro, VL .
INORGANICA CHIMICA ACTA, 2002, 331 (01) :73-80
[24]   COMPOSITIONAL AND GEOMETRICAL-ISOMERS OF 15-METALLACROWN-5 COMPLEXES [J].
KESSISSOGLOU, DP ;
KAMPF, J ;
PECORARO, VL .
POLYHEDRON, 1994, 13 (09) :1379-1391
[25]   Synthesis and characterization of [MnIII6(N-formylsalicylhydrazidate)6(MeOH)6]:: A a new type of macrocyclic hexanuclear manganese cluster [J].
Kwak, B ;
Rhee, H ;
Park, S ;
Lah, MS .
INORGANIC CHEMISTRY, 1998, 37 (14) :3599-3602
[26]   THE FUSED METALLACROWN ANION NA2([NA0.5[GA(SALICYLHYDROXIMATE)]4]2(MU-2-OH)4)- IS AN INORGANIC ANALOG OF A CRYPTATE [J].
LAH, MS ;
GIBNEY, BR ;
TIERNEY, DL ;
PENNERHAHN, JE ;
PECORARO, VL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (13) :5857-5858
[27]  
Liu SX, 2001, ANGEW CHEM INT EDIT, V40, P1084, DOI 10.1002/1521-3773(20010316)40:6<1084::AID-ANIE10840>3.0.CO
[28]  
2-U
[29]   Tetranuclear copper(II) and nickel(II) cluster complexes derived by self-assembly from a series of tetradentate diazine ligands: Structural and magnetic studies [J].
Matthews, CJ ;
Avery, K ;
Xu, ZQ ;
Thompson, LK ;
Zhao, L ;
Miller, DO ;
Biradha, K ;
Poirier, K ;
Zaworotko, MJ ;
Wilson, C ;
Goeta, AE ;
Howard, JAK .
INORGANIC CHEMISTRY, 1999, 38 (23) :5266-5276
[30]   Macrocyclic Cu-2(II), Cu-4(II), Ni-3(II), and Ni-4(II) complexes: Magnetic properties of tetranuclear systems [J].
Mohanta, S ;
Nanda, KK ;
Werner, R ;
Haase, W ;
Mukherjee, AK ;
Dutta, SK ;
Nag, K .
INORGANIC CHEMISTRY, 1997, 36 (21) :4656-4664