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首页> 外文期刊>Journal of chemical crystallography >Syntheses and Crystal Structures of Two Novel 1D Complexes of Zinc(II) with Terephthalato-bridge
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Syntheses and Crystal Structures of Two Novel 1D Complexes of Zinc(II) with Terephthalato-bridge

机译:锌(II)对苯二甲酸桥的两个新型一维配合物的合成和晶体结构

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Two novel complexes [Zn(NIT3-py)(tp)](n) 1 and [Zn(im3-py)(tp)](n) 2 (NIT3-py = 2-(3'-pyridyl)-4,4,5, 5-tetramethylimidazoline-1-oxyl-3-oxide, im3-py = 2-(3'-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl, tp = terephthalato) have been synthesized and structurally determined by X-ray diffraction analysis. Complex 1 is, monoclinic, space group P2/c, with a = 12.6459(14), b = 6.9110(8), c = 20.0376(17)angstrom, beta = 112.030(5), V = 1623.3(3) angstrom(3) with Z = 2, for d(calc) = 1.428 Mg/m(3). The analog 2 is, monoclinic, space group P2, with a = 12.2313(15), b = 6.8478(9), c = 19.908(3)angstrom, beta = 107.368(2), V = 1591.4(3)angstrom(3), with Z = 2 for d(calc) = 1.390 Mg/m(3). X-ray analysis reveals that both Zn(II) ions are four-coordinated by two carboxylate oxygen atoms and two pyridyl-N atoms from nitroxide radicals to form a tetrahedron geometry. Each terephthalate dianion bridges two Zn(II) ions in bis-monodentate mode, resulting in a 1D chain structure.
机译:两个新颖的配合物[Zn(NIT3-py)(tp)](n)1和[Zn(im3-py)(tp)](n)2(NIT3-py = 2-(3'-吡啶基)-4,已经合成了4,5,5-四甲基咪唑啉-1-氧基-3-氧化物,im3-py = 2-(3'-吡啶基)-4,4,5,5-四甲基咪唑啉-1-氧基,tp =对苯二甲酸)并通过X射线衍射分析确定其结构。复杂1是单斜的P2 / c空间群,a = 12.6459(14),b = 6.9110(8),c = 20.0376(17)埃,beta = 112.030(5),V = 1623.3(3)埃( 3)Z = 2,则d(calc)= 1.428 Mg / m(3)。类似物2是单斜空间群P2 / n,a = 12.2313(15),b = 6.8478(9),c = 19.908(3)埃,beta = 107.368(2),V = 1591.4(3)埃(3),对于d(calc)= 1.390 Mg / m(3),Z = 2。 X射线分析表明,两个Zn(II)离子均被来自氮氧化物自由基的两个羧酸氧原子和两个吡啶-N原子四配位,形成四面体几何形状。每个对苯二甲酸二价阴离子以双单齿模式桥接两个Zn(II)离子,从而形成一维链结构。

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