Magnetic anisotropy of a supramolecular Cu(II) [3 x 3] grid

被引：48

作者：

Waldmann, O ^{[1
]}

Koch, R

Schromm, S

Müller, P

Zhao, L

Thompson, LK

机构：

[1] Univ Erlangen Nurnberg, Inst Phys 3, D-91058 Erlangen, Germany

[2] Mem Univ Newfoundland, Dept Chem, St Johns, NF A1B 3X7, Canada

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 332卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/S0009-2614(00)01233-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The magnetic anisotropy of the nona-Cu(II) [3 x 3] grid structure [Cu-9(2POAP-H-6)](NO3)(12). 9H(2)O was investigated by means of torque magnetometry. The analysis of the high-field part of torque vs. field curves measured at 1.75 K allowed a precise determination of all anisotropy parameters of the ground state. These could be related to the magnetic parameters of the microscopic Hamiltonian by a suitable perturbation theoretical treatment. We found strong evidence for a sizeable anisotropic exchange interaction. The observed anisotropy of the g-factor could not be explained by simple ligand field arguments which is attributed to the unusual quasi-octahedral coordination environment of the Cu ions. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：73 / 78

页数：6

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