Triangular geometrical and magnetic motifs uniquely linked on a spherical capsule surface

被引:123
作者
Müller, A
Todea, AM
van Slageren, J
Dressel, M
Bögge, H
Schmidtmann, M
Luban, M
Engelhardt, L
Rusu, M
机构
[1] Univ Bielefeld, Fak Chem, Lehrstuhl Anorgan Chem 1, D-33501 Bielefeld, Germany
[2] Univ Stuttgart, Inst Phys 1, D-70550 Stuttgart, Germany
[3] Iowa State Univ, Ames Lab, Ames, IA 50011 USA
[4] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
[5] Univ Babes Bolyai, Fac Chem, R-3400 Cluj Napoca, Romania
关键词
magnetochemistry; mixed-valence compounds; molybdenum; polyoxometalates; vanadium;
D O I
10.1002/anie.200500697
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Sphere we go: A spherical capsule is prepared simply by the interaction of linkers to pentagonal structural units. The metal centers (M) of the {(Mo VI)MoVI 5}12-M30 type Keplerates formed (M=VIV, FeIII) describe an icosidodecahedron (see picture). For M = FeIII the magnetic configuration of the 30 spin centers (colored spheres) can be pictured geometrically in terms of three sets, each of 10 spins, with different angular orientations (arrows). With M =VIV the compound behaves according to the demands of quantum mechanics and a clear geometrical picture of the magnetism is not possible. (Figure Presented) © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:3857 / 3861
页数:5
相关论文
共 33 条
[1]  
[Anonymous], UNPUB
[2]   Exact ground state properties of the classical Heisenberg model for giant magnetic molecules [J].
Axenovich, M ;
Luban, M .
PHYSICAL REVIEW B, 2001, 63 (10) :4
[3]  
Brandenburg K., 2001, CRYSTAL IMPACT GBR
[4]  
Coxeter H. S. M, 1989, INTRO GEOMETRY
[5]  
COXETER HSM, 1973, REGULAR POLYOTOPES, P18
[6]  
Diep H T., 1994, Magnetic systems with competing interactions: frustrated spin systems
[7]   Giant clusters with unusual electronic and magnetic structures due to open shell metal centers embedded far apart from each other: Spin frustration and antisymmetric exchange [J].
Gatteschi, D ;
Sessoli, R ;
Plass, W ;
Muller, A ;
Krickemeyer, E ;
Meyer, J ;
Solter, D ;
Adler, P .
INORGANIC CHEMISTRY, 1996, 35 (07) :1926-1934
[8]  
Gatteschi D, 2004, NATO SCI SER II-MATH, V139, P179
[9]  
Gatteschi D., 2003, Europhysics News, V34, P214, DOI 10.1051/epn:2003604
[10]  
GATTESCHI D, 2001, POLYOXOMETALATE CHEM, P319