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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Structural features of palladium(II) complexes with α- hydroxycarboxylate and aromatic α,α′-diimine ligands
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Structural features of palladium(II) complexes with α- hydroxycarboxylate and aromatic α,α′-diimine ligands

机译：具有α-羟基羧酸盐和芳族α，α'-二亚胺配体的钯（II）配合物的结构特征

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摘要

The neutral α-hydroxycarboxylate complexes [Pd(bpy)(GLYO)] ·3H_2O (1), [Pd(bpy)(MANO)]·4H_2O (2) and [Pd(GLYO)(phen)]·5H_2O (3), together with the palladium(II) complexes [Pd(phen)_2](NO_3)_2 (4) and [Pd(CH _2COCH_3)(bpy)(Cl)] (5) (where GLYO and MANO are the glycolate and mandelate dianions, respectively, and bpy and phen, 2,2′-bipyridine and 1,10-phenantrholine, respectively), have been prepared by reaction of [Pd(bpy)Cl_2] or [PdI_2(phen)] with salts of α-hydroxycarboxylic acids in water. These compounds were characterized by elemental analysis, mass spectrometry, 1H and ~(13)C NMR, UV-Vis, IR spectroscopy, TG analysis and single crystal X-ray diffraction. The aforementioned studies confirmed the formation of a variety of square-planar mononuclear compounds (1-3) where the α,α′-diimine ligands exhibit a rather simple bidentate chelating role and the α- hydroxycarboxylate ligands are dianionic. A variety of ligand distortions, hydrogen-bonding and stacking interactions were found and these were thoroughly analyzed. In compounds 1 and 3, the complex molecules are stacked in such a way that the coordination planes are parallel to one another. The Pd?Pd distances between the nearest stacked neighbors are 3.8043(6) and 3.302(2)/3.475(1) ?, respectively. Compounds 1-3 have been tested in vitro for cytotoxicity on HeLa-299 human tumor cell lines.
机译：中性α-羟基羧酸盐络合物[Pd（bpy）（GLYO）]·3H_2O（1），[Pd（bpy）（MANO）]·4H_2O（2）和[Pd（GLYO）（phen）]·5H_2O（3） ，以及钯（II）配合物[Pd（phen）_2]（NO_3）_2（4）和[Pd（CH _2COCH_3）（bpy）（Cl）]（5）（其中GLYO和MANO是甘醇酸酯和扁桃酸酯通过[Pd（bpy）Cl_2]或[PdI_2（phen）]与α-盐的反应制备了二价阴离子和bpy和phen，分别为2,2'-联吡啶和1,10-菲咯啉。水中的羟基羧酸。这些化合物的特征在于元素分析，质谱，1H和〜（13）C NMR，UV-Vis，IR光谱，TG分析和单晶X射线衍射。前述研究证实了多种方平面单核化合物（1-3）的形成，其中α，α′-二亚胺配体表现出相当简单的二齿螯合作用，而α-羟基羧酸酯配体为双阴离子。发现了各种配体畸变，氢键和堆积相互作用，并对其进行了彻底分析。在化合物1和3中，复合分子以这样的方式堆叠：配位面彼此平行。最近的堆叠邻居之间的Pd？Pd距离分别为3.8043（6）和3.302（2）/3.475（1）？。已在体外测试化合物1-3对HeLa-299人肿瘤细胞系的细胞毒性。

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