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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Interaction of Mn(acac)(3) with asymmetrical Schiff base ligands containing an amido group
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Interaction of Mn(acac)(3) with asymmetrical Schiff base ligands containing an amido group

机译:Mn(acac)(3)与含有酰胺基的不对称席夫碱配体的相互作用

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摘要

Interaction of asymmetrical Schiff base ligands H3Ln [where H3Ln are substituted 3-aza-4-(2-hydroxyphenyl)-N(2-hydroxyphenyl)but-3-enamide] with Mn(acaC)(3) (acac = acetylacetonate) has been investigated. Two different type of manganese(III) complexes have been obtained depending on the nature of the substituents on the ligand. We have found that ligands containing donor substituents drives to the formation of two different kinds of complexes from the same reaction: Mn(L-n)(H2O)(x) (1a-5a) and [Mn(HLn)(acac)](H2O)(y) (1b-5b) (where L-n and HLn signify the ligand in its trianionic and dianionic form, respectively). However, when the substituents are electron withdrawing or poor donor only compounds of the type [Mn(HLn)(acac)](H2O)(y) (6-10) are obtained. All these compounds have been characterized by elemental analyses, IR and H-1 NMR spectroscopy, FAB mass spectrometry, magnetic measurements and molar conductivities. The electrochemical behaviour of these complexes has also been studied.
机译:不对称席夫碱配体H3Ln [其中H3Ln被取代的3-氮杂-4-(2-羟基苯基)-N(2-羟基苯基)丁-3-烯酰胺)与Mn(acaC)(3)的相互作用(acac =乙酰丙酮酸酯)具有被调查。根据配体上取代基的性质,已经获得了两种不同类型的锰(Ⅲ)配合物。我们已经发现,含有供体取代基的配体会驱动同一反应生成两种不同的络合物:Mn(Ln)(H2O)(x)(1a-5a)和[Mn(HLn)(acac)](H2O (y)(1b-5b)(其中Ln和HLn分别表示三阴离子和双阴离子形式的配体)。但是,当取代基是吸电子或较差的给体时,仅获得[Mn(HLn)(acac)](H2O)(y)(6-10)类型的化合物。所有这些化合物的特征在于元素分析,IR和H-1 NMR光谱,FAB质谱,磁测量和摩尔电导率。还研究了这些配合物的电化学行为。

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