Abstract

New xylatogermanates with the same homogermanate complex anion and various phenanthrolinecopper(II) cations, namely, [Cu(Phen)₃]₂[(OH)₂Ge₂(µ-HXylar)₄Ge₂(µ-OH)₂] · 8H₂O (I), [Cu(H₂O)(Phen)₂]₂[(OH)₂Ge₂(µ-HXylar)₄Ge₂(µ-OH)₂] · 8H₂O (II), and [CuCl(Phen)₂]₄[(OH)₂Ge₂(µ-HXylar)₄Ge₂(µ-OH)₂] · 8H₂O (III), have been synthesized by the developed method and studied by IR spectroscopy and thermogravimetry. According to X-ray diffraction data, they represent ionic type complexes with the [(OH)₂Ge₂(μ-HXylar)₄Ge₂(μ-OH)₂]^4– tetranuclear germanium-containing complex anion and three complex cations: [Cu(Phen)₃]²⁺ (I), [Cu(H₂O)(Phen)₂]²⁺ (II), and [CuCl(Phen)]⁺ (III). The Ge atoms in the complex anion have two types of coordination: they are five- or six-coordinated. Each Ge atom is linked to the deprotonated carboxylic and hydroxyl groups of two xylaric acid molecules. The five-coordinated Ge atom is additionally linked to one terminal hydroxyl ligand, and the six-coordinated Ge atom is linked to two bridging hydroxyl groups. In crystal structures I and II, cations and anions form alternating layers, which are interchangeably composed of cations and anions. In crystal structure III, cations form “porous” layers, whose cavities accommodate chains of anions. The layers of cations are linked by weak stacking-interactions between the π-systems of Phen.

中文翻译：

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具有复杂的邻菲咯啉铜（II）阳离子的四核木糖金属（IV）中的定向结构形成。

摘要

具有相同高锗酸根络合物阴离子和各种菲咯啉铜（II）阳离子的新木锗酸根，即[Cu（Phen）₃ ] ₂ [（OH）₂ Ge ₂（µ-HXylar）₄ Ge ₂（µ-OH）₂ ]·8H ₂ O（I），[Cu（H ₂ O）（Phen）₂ ] ₂ [（OH）₂ Ge ₂（μ-HXylar）₄ Ge ₂（μ-OH）₂ ]·8H ₂ O（II），和[CuCl（Phen）₂ ] ₄ [（OH）₂ Ge ₂（µ-HXylar）₄ Ge ₂（µ-OH）₂ ]·8H ₂ O（III），已通过开发的方法合成，并通过红外光谱和热重分析进行了研究。根据X射线衍射数据，它们表示与[（OH）₂ Ge ₂（μ-HXylar）₄ Ge ₂（μ-OH）₂ ] ^4–四核含锗的复合阴离子和三个复合阳离子的离子型复合物： [Cu（Phen）₃ ] ²⁺（I），[Cu（H ₂ O）（Phen）₂ ] ²⁺（II）和[CuCl（Phen）] ⁺（III）。复杂阴离子中的Ge原子具有两种配位类型：五或六配位。每个Ge原子都连接到两个木糖酸分子的去质子化的羧基和羟基上。五配位的Ge原子另外连接至一个末端羟基配体，而六配位的Ge原子连接至两个桥连的羟基。在晶体结构I和II中，阳离子和阴离子形成交替的层，其交替地由阳离子和阴离子组成。在晶体结构III中阳离子形成“多孔”层，其空腔容纳阴离子链。阳离子层通过Phen的π系统之间的弱堆积相互作用进行连接。