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在Zn2+的存在下,2,6-二甲酰基对氟苯酚和1,4-丁二胺通过环缩合反应,合成了一种对称的大环双核锌配合物:[Zn2L1(μ-OAc)]ClO4·0.5CH3OH。通过远红外、紫外、二维核磁、电喷雾质谱和荧光等研究了配合物的结构。并用X-射线晶体衍射测定了配合物的结构。晶体结构表明,在一个不对称的单元中含2个化学组成相同、分子结构基本相似的大环配合物阳离子A和B。每个大环中的锌离子都处于扭曲的四面体中,且由2个酚氧桥相连。配合物的三维结构由配合物中的非经典氢键构成。
In the presence of Zn2 +, a symmetrical macrocyclic binuclear zinc complex was synthesized by ring condensation reaction of 2,6-diformyl p-fluorophenol and 1,4-butanediamine: [Zn2L1 (μ-OAc)] ClO4 · 0.5CH3OH. The structure of the complex was studied by far-infrared, ultraviolet, two-dimensional nuclear magnetic resonance, electrospray ionization mass spectrometry and fluorescence. The structure of the complex was determined by X-ray crystallography. The crystal structure shows that there are two macrocyclic cations A and B with the same chemical composition and similar molecular structure in an asymmetric unit. The zinc ions in each macrocycle are in a distorted tetrahedron and are linked by two phenolic oxygen bridges. The three-dimensional structure of the complex consists of non-classical hydrogen bonds in the complex.