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含三乙醇胺及硫氰酸根的混价七核锰配合物{K[Mn^ⅡMn^Ⅲ₆（teaH）₃（tea）₃（NCS）₆]}_n的合成、结构和磁性研究（英文）

Synthesis,Structure and Magnetic Properties of a Mixed-Valence Heptanuclear Manganese Complex with Triethanolamine and Thiocyanate {K[Mn^ⅡMn^Ⅲ₆（teaH）₃（tea）₃（NCS）₆]}_n

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【Author】 XU Min* ZHOU Ai-Jü LI Dong-Xiang HUANG Hui-Yi XIE Guo-Biao DONG Wen(School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou 510006,China)

【机构】广州大学化学化工学院；

【摘要】采用MnCl2(或Mn(NO3)2)与teaH3和KSCN混合配体合成了1个七核锰配合物{K[MnⅡMnⅢ6(teaH)3(tea)3(NCS)6]}n(1)(teaH3=三乙醇胺),通过元素分析和红外光谱对其进行了表征,并通过X-单晶衍射确定了其晶体结构。1的阴离子由外围6个锰髥与1个中心Mn髤通过6个μ3-O键连接成1个类似车轮的环状结构。直流磁化率研究结果表明,该配合物具有较高的自旋基态(S=29/2),其磁性行为说明在高自旋的Mn髤和Mn髥之间存在铁磁性相互作用。更多还原

【Abstract】 A mixed-valence heptanuclear manganese complex {K[MnⅡMnⅢ6(teaH)3(tea)3(NCS)6]}n(1)(teaH3=triethanolamine) has been synthesized by the reaction of MnCl2(or Mn(NO3)2) with mixed ligands of teaH3 and KSCN and structurally characterized by IR,elemental analysis,single crystal X-ray diffraction.The anion of 1 consists of a Mn7 unit and compose wheel structure,in which a central MnⅡ ion surrounded by six MnⅢ ions.The result based on direct current magnetic susceptibility showed 1 a spin ground state S=29/2.The magnetic behavior of 1 indicates a ferromagnetic interaction between the high-spin MnⅡ and MnⅢ ions.CCDC: 843079.更多还原