Synthesis, characterization and structure of a new zinc(II) complex containing the hexadentate N,N′,N,N′-bis[(2-hydroxy-3,5-di-tert-butylbenzyl)(2-pyridylmethyl)]-ethylenediamine ligand: Generation of phenoxyl radical species
作者:Ademir dos Anjos、Adailton J. Bortoluzzi、Bruno Szpoganicz、Miguel S.B. Caro、Geraldo R. Friedermann、Antonio S. Mangrich、Ademir Neves
DOI:10.1016/j.ica.2005.04.043
日期:2005.7
the structural, spectral and redox properties of a mononuclear zinc(II) complex with the new H2L ligand (H2L = N,N′,N,N′-bis[(2-hydroxy-3,5-di-tert-butylbenzyl)(2-pyridylmethyl)]-ethylene diamine). The crystal structure of the complex [ZnII(HL)] · ClO4 (1) was determined by X-ray crystallographic analysis. The structure of this complex consists of a discrete mononuclear cation [ZnII(HL)]+, in a strongly
这项工作总结了对单核锌(II)配合物与新的H的结构,光谱和氧化还原性质我们的研究结果2大号配体(H 2 L = Ñ,Ñ ',Ñ,Ñ ' -双[(2- -羟基-3,5-二叔丁基苄基)(2-吡啶基甲基)]-乙二胺)。通过X射线晶体学分析确定配合物[Zn II(HL)]·ClO 4(1)的晶体结构。该络合物的结构由离散的单核阳离子[Zn II(HL)] +组成。如结构指数参数τ为0.44所反映的,在强烈扭曲的几何形状中,具有略微趋向于扭曲的方形金字塔形几何形状的趋势。锌(II)阳离子与一个氧和四个氮原子配位:吡啶氮原子(N22和N32),叔胺氮原子(N1和N4)和酚盐氧原子(O10)。1 H和13个C NMR光谱数据示出了用于刚性溶液结构1中与X射线结构一致。还对复合物1进行了电位测量研究,发现了三个可滴定的质子,这归因于两个酚基的质子化/去质子化(p [ K ] a1 = 4.04和p [