Synthesis, characterization and magnetic properties of mono- and dinuclear complexes of Manganese (III) and (IV) supported by (E)-N鈥?(1-(thiophene-2-yl)ethylidene)benzohydrazide arising from an unusual Mn(III) to Mn(IV) disproportionation reaction

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• 作者：David Specklin ; Clarisse Tourbillon ; Vitor Rosa ; Mohamedally Kurmoo ; Richard Welter ; ^{welter@unistra.fr}
• 关键词：H2L ; N&prime ; -(1 ; 3-dithiolan-2-ylidene)-2-hydroxybenzohydrazide ; HL&prime ; (E)-N&prime ; -(1-(thiophen-2-yl)ethylidene)benzohydrazide ; acac ; acetylacetonate ; THF ; Tetrahydrofuran ; H-bond(s) ; hydrogen bond(s) ; AcO ; acetate
• 刊名：Inorganic Chemistry Communications
• 出版年：2012
• 期刊代码：39_13877003
• 类别：ch
• 出版时间：June, 2012
• 卷：20
• 期：Complete
• 页码：172-176
• 文件大小：607 K

摘要

A new Mn^IV dinuclear complex [Mn^IV₂(渭-O)₂(L鈥?₄].2CH₃OH (HL鈥?#xA0;= (E)-N鈥?(1-(thiophen-2-yl)ethylidene)benzohydrazide) was obtained from Mn^III(acetate)₃.2H₂O by an unusual Mn^III disproportionation reaction. This compound exhibits a strong antiferromagnetic coupling with a J value of 鈭?#xA0;149(5) cm^鈭?#xA0;1. Moreover, a new Mn^III mononuclear complex bearing L鈥?named [Mn^III(acac)(L鈥?₂] (acac = acetylacetonate) was obtained from [Mn^III(acac)₃] and is described as a part of a systematic research work around manganese complexes of magnetic interest.