Mn(III) complexes with asymmetrical N2O3 Schiff bases. The unusual crystal structure of [Mn(phenglydisal-3-Br,5-Cl)(dmso)] (H3phenglydisal = 3-aza-N-{2-[1-aza-2-(2-hydroxyphenyl)vinyl]phenyl}-4-(2-hydroxyphenyl)but-3-enamide), a mononuclear single-stranded helical manganese(III) complex
作者:Olga L. Hoyos、Manuel R. Bermejo、Matilde Fondo、Ana García-Deibe、Ana M. González、Marcelino Maneiro、Rosa Pedrido
DOI:10.1039/b005021k
日期:——
Neutral manganese(III) complexes, with potentially pentadentate and trianionic asymmetrical Schiff bases, containing a hard amido donor atom, have been synthesised. Complexes are found to be of the form MnIII(phenglydisal-R)(H2O)n (n = 1–4) [H3phenglydisal = 3-aza-N-2-[1-aza-2-(2-hydroxyphenyl)vinyl]phenyl}-4-(2-hydroxyphenyl)but-3-enamide; R = H; 3-OEt, 4,6-(OMe)2, 5-NO2, 3-OMe, 5-Br, 3-Br,5-Cl] and have been characterised by elemental analyses, FAB mass spectrometry, IR and 1H NMR spectroscopies, magnetic measurements, molar conductivities and cyclic voltammetry. [Mn(phenglydisal-3-Br,5-Cl)(dmso)] 3, was also crystallographically characterised and its crystal structure shows the manganese atom in an octahedral environment, with the ligand giving rise to a mononuclear single-stranded helical complex.
我们合成了中性锰(III)络合物,这些络合物可能是含有硬氨基供体原子的五价和三价不对称席夫碱。发现络合物的形式为 MnIII(phenglydisal-R)(H2O)n(n = 1-4)[H3phenglydisal = 3-氮杂-N-2-[1-氮杂-2-(2-羟基苯基)乙烯基]苯基}-4-(2-羟基苯基)丁-3-烯酰胺;R = H;3-OEt、4,6-(OMe)2、5-NO2、3-OMe、5-Br、3-Br、5-Cl],并通过元素分析、FAB 质谱、红外和 1H NMR 光谱、磁性测量、摩尔电导率和循环伏安法进行了表征。还对[Mn(phenglydisal-3-Br,5-Cl)(dmso)] 3 进行了晶体学表征,其晶体结构显示锰原子处于八面体环境中,配体形成单核单链螺旋复合物。