Magnetic exchange interaction in triply bridged dinickel(II) complexes

被引:18
|
作者
Loose, Claudia [1 ]
Ruiz, Eliseo [2 ,3 ]
Kersting, Berthold [4 ]
Kortus, Jens [1 ]
机构
[1] TU Bergakad Freiberg, Inst Theoret Phys, D-09599 Freiberg, Germany
[2] Univ Barcelona, Dept Quim Inorgan, Barcelona 08028, Spain
[3] Univ Barcelona, Inst Recerca Quim Teor & Computac, E-08028 Barcelona, Spain
[4] Univ Leipzig, Inst Anorgan Chem, D-04103 Leipzig, Germany
关键词
D O I
10.1016/j.cplett.2007.12.035
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
We investigated the magnetic properties of a series of dinickel(II) complexes with hexaaza-dithiophenolate ligand [(L)Ni-2(mu-L')(n+) bridged by L' = N-3(-), BH4-, NO2-, acetato, benzoato and pyridazine using density functional theory calculations. We show that the experimental observed behavior can be understood with help of the Hay-Thibeault-Hoffmann model, where ferromagnetic coupling is related to the degeneracy of the magnetic orbitals. Further, we calculate the magnetic anisotropy parameters including spin-orbit coupling effects in a perturbative way. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:38 / 43
页数:6
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