一个新的双核双(μ-氧桥)锰(Ⅲ/Ⅳ)配合物的合成、结构和性质 |
Synthesis, Structure and Properties of a New Dinuclear Bis(μ-oxo) Manganese(Ⅲ/Ⅳ ) Complex |
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摘要: 二价锰盐和1,4,8,11-环十四四氮烷(cyclam)在溶液中自组装生成双核双(μ-氧桥)锰(Ⅲ/Ⅳ)配合物:[(cyclam)MnO]2(ClO4)2(NO3)。该配合物被晶体结构表征,低温EPR表明其具有16条Mn(Ⅲ)/Mn(Ⅳ)二聚体的特征信号。磁性研究确认有强的反铁磁性,J/k=-680K,g=2.0。 |
关键词: 锰配合物 晶体结构 EPR 磁性 |
基金项目: 国家自然科学基金资助项目(No.NSF29823001) |
Abstract: The dinuclear bis(μ-oxo)manganese(Ⅲ,Ⅳ) complex,[(cyclam)MnO]2(ClO4)2(NO3) (cyclam=1,4,8,11 tetraazacyclotetradecane), was self assembled by the reaction of Mn2+ with 1,4,8,11-tetraazacyclotetradecane in aqueous medium. This compound was structurally characterized and the typical 16 line signal for a bis(μ-oxo) Mn(Ⅲ)/Mn(Ⅳ) dimer was observed in the low temperature EPR spectra. The magnetic susceptibility studies suggest that the compound is strong antiferromagnetic with J/k=-680K for g=2.0. |
Keywords: manganese complex crystal structure EPR magnetic properties |
投稿时间:2001-04-29 修订日期:2001-05-22 |
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卢颖洪,沈珍,左景林,FUN Hoong-Kun,游效曾.一个新的双核双(μ-氧桥)锰(Ⅲ/Ⅳ)配合物的合成、结构和性质[J].无机化学学报,2001,17(4):567-572. |
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