Synthesis of novel manganese-based single-molecule nanomagnets

被引：0
|
作者：
Kim, J [1 ]
Cho, H [1 ]
Gupta, AK [1 ]
Lim, JM [1 ]
Do, Y [1 ]
机构：
[1] Kongju Natl Univ, Dept Chem, Kong Ju 314701, Chungnam, South Korea
来源：
ASIANANO 2002, PROCEEDINGS | 2003年
关键词：
single-molecule magnets; manganese; ac-susceptibility; magnetic hysteresis;
D O I：
10.1142/9789812796714_0014
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：
New Mn12 single-molecule nanomagnets [Mn12O12(O2CCHCl2)(H2O)(4)]center dot 2CH(2)Cl(2)center dot H2O and [Mn12O12(O2CCHCl2)(H2O)(4)]center dot 2CH(3)C(6)H(5)center dot 4H(2)O and novel Mn18 complexes [M18O14(O2CR)(18)(hmp)(4)(hmpH)(2)(H2O)(2)] (R = Me, Et) have been synthesized and characterized by single crystal X-ray crystallography and dc- and ac-magnetic susceptibility measurements. Mn12 complexes show characteristic SMM properties, such as temperature-dependent out-of-phase ac-susceptibility. Mn18 does not show relaxation behaviors down to 2.0 K, but reveals magnetic anisotropy in reduced magnetization experiment.
引用
收藏
页码：81 / 85
页数：5
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