Layered ferromagnets hosting tetraalkylammonium-substituted nitronyl nitroxide free radicals

被引：15
|
作者：
Coronado, Eugenio
Gimenez-Saiz, Carlos [1 ,2 ]
Gomez-Garcia, Carlos J.
Romero, Francisco M. [1 ,2 ]
Tarazon, Ana [1 ]
机构：
[1] Univ Valencia, Inst Ciencia Mol, Valencia 46071, Spain
[2] Fundacao Gen Univ Valencia, Valencia, Spain
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2008年 / 18卷 / 08期
关键词：
D O I：
10.1039/b715739h
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：
This paper describes the structural, magnetic and EPR properties of hybrid organic/inorganic magnets formed by anionic heterometallic oxalato-based layers and cationic nitronyl nitroxide (NN) free radicals of the tetraalkylammonium type. A series of compounds of formula (Bu3NCH2NN)-Bu-n[MCr(ox)(3)] (M=Mn (1), Ni (2), Zn (3)) has been prepared and studied by AC and DC magnetic susceptibility measurements and EPR spectroscopy. Magnetic order with critical temperatures ranging from 5 K to 15 K was confirmed. EPR measurements show that the organic spin carriers interact significantly with the inorganic network.
引用
收藏
页码：929 / 934
页数：6
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