首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Copper(II) and lanthanoid(III) complexes of a new beta-diketonate ligand with an appended non-coordinating phenol group
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Copper(II) and lanthanoid(III) complexes of a new beta-diketonate ligand with an appended non-coordinating phenol group

机译:具有附加的非配位酚基团的新β-二酮酸酯配体的铜(II)和镧系元素(III)配合物

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摘要

New mononuclear compounds of the ligand 1-(2-hydroxyphenyl)-3-phenylpropane-1,3-dione (H2L) with Cu(II) and several lanthanoid(III) ions, where Ln(III) = Pr, Nd, Eu, Gd, have been synthesized and characterized by spectroscopic methods and X-ray crystal structure determinations. In all compounds the, ligand coordinates in a bidentate chelating manner, using the diketone function. In the [Cu(HL)(2)], the coordination geometry of Cu(II) ion is slightly distorted square-planar: two strong intramolecular (OH center dot center dot center dot O) hydrogen-bonding interactions are established between the phenolate group and the neighboring ketone function. The lanthanoid(III) compounds have the general formula [Ln(HL)(3)(CH3OH)(2)]center dot CH3OH center dot 2H(2)O; the lanthanoid(III) ion (Ln) is eight-coordinated and the coordination geometry is based on a distorted square-antiprism. In addition to the intramolecular hydrogen bonding (OH center dot center dot center dot O) intermolecular hydrogen-bonding interactions are also present between the coordinated methanol molecule and the non-coordinated methanol molecule giving rise to a three-dimensional network.
机译:配体1-(2-羟苯基)-3-苯基丙烷-1,3-二酮(H2L)与铜(II)和几个镧系元素(III)离子的新单核化合物,其中Ln(III)= Pr,Nd,Eu ,Gd,已经合成并通过光谱方法和X射线晶体结构测定来表征。在所有化合物中,配体利用二酮功能以二齿螯合方式配位。在[Cu(HL)(2)]中,Cu(II)离子的配位几何形状略呈方平面形:在酚盐之间建立了两个强分子内(OH中心点中心点中心点O)氢键相互作用基团和邻酮功能。镧系(III)化合物具有通式[Ln(HL)(3)(CH3OH)(2)]中心点CH3OH中心点2H(2)O;镧系元素(III)离子(Ln)是八配位的,配位几何基于扭曲的方形反棱镜。除了分子内氢键(OH中心点中心点中心点O)之外,配位甲醇分子和非配位甲醇分子之间还存在分子间氢键相互作用,从而形成三维网络。

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