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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Synthesis and structural characterization of heavier group 1 methyl tetrazolate complexes: New bridging coordination modes of the tetrazolate ligand
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Synthesis and structural characterization of heavier group 1 methyl tetrazolate complexes: New bridging coordination modes of the tetrazolate ligand

机译:较重的1族四唑甲基酯配合物的合成和结构表征:四唑配体的新桥联配位模式

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摘要

A series of sodium, potassium, rubidium, and cesium complexes of methyl tetrazolate was prepared and structurally characterized. Treatment of methyl tetrazole (MetetzH) with the group 1 hydroxides in water at ambient temperature afforded Na(Metetz)(H2O)(2) (92%), K(Metetz) (92%), Rb(Metetz) (97%), and Cs(Metetz) (97%) as colorless solids after workup. These complexes were characterized by spectral and analytical methods, thermogravimetric analysis, and by X-ray crystallography. Na(Metetz)(H2O)(2) adopts a structure that consists of approximately octahedrally coordinated sodium ions that form infinite chains built up by two mu(2)-aqua ligands and two mu(2)-N-1,N-2-tetrazolate ligands between each sodium atom. The aqua ligand hydrogen atoms engage in hydrogen bonding with uncoordinated nitrogen atoms to hold the chains together. K(Metetz) and Rb(Metetz) are isostructural, with eight-coordinate metal ions and two metal-nitrogen bonds per nitrogen atom in each Metetz ligand. Cs(Metetz) has 10-coordinate cesium ions with two cesium-nitrogen bonds to two of the Metetz ligand nitrogen atoms and three cesium-nitrogen bonds to the other two nitrogen atoms. K(Metetz), Rb(Metetz), and Cs(Metetz) exhibit new coordination modes for the tetrazolate ligand. (C) 2008 Elsevier Ltd. All rights reserved.
机译:制备了一系列四唑酸甲酯的钠,钾,rub和铯配合物,并进行了结构表征。在环境温度下用水中的第1组氢氧化物处理甲基四唑(MetetzH),得到Na(Metetz)(H2O)(2)(92%),K(Metetz)(92%),Rb(Metetz)(97%) ,后处理后的Cs(Metetz)(97%)为无色固体。这些配合物通过光谱和分析方法,热重分析和X射线晶体学进行表征。 Na(Metetz)(H2O)(2)采用的结构由大约八面体配位的钠离子组成,该钠离子形成由两个mu(2)-aqua配体和两个mu(2)-N-1,N-2构成的无限链每个钠原子之间的-四唑酸酯配体。水性配体氢原子与未配位的氮原子进行氢键结合,使链保持在一起。 K(Metetz)和Rb(Metetz)是同构的,每个Metetz配体中具有八个配位的金属离子和每个氮原子两个金属氮键。 Cs(Metetz)具有10个配位的铯离子,其中两个Metetz配体氮原子具有两个铯-氮键,而另外两个氮原子具有三个铯-氮键。 K(Metetz),Rb(Metetz)和Cs(Metetz)对四唑酸酯配体显示出新的配位模式。 (C)2008 Elsevier Ltd.保留所有权利。

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