作者:Agnieszka Pazik、Anna Skwierawska
DOI:10.1007/s10847-012-0219-4
日期:2013.12
Syntheses of N,N′-phenyltetrazole podands link with aliphatic chains containing oxygen, nitrogen and sulphur atoms, are described. The complexing properties of these compounds towards metal cations (Fe2+, Cu2+, Zn2+, Co2+, Ni2+) were investigated by absorption and infrared spectroscopy. The UV–Vis titrations were performed to estimate the stability constant values of the respective complexes with Cu2+ ion. Changes in UV–Vis absorption spectra and IR spectra of compound 6 under various concentrations of Cu2+ ion in methanol suggest formation of very unstable complex. The structure of ligand 2 has been deduced by X-ray crystallography.
描述了N,N′-苯基四氮唑桥联体与含氧、氮和硫原子的脂肪链的合成。这些化合物对金属阳离子(Fe²⁺、Cu²⁺、Zn²⁺、Co²⁺、Ni²⁺)的络合特性通过吸收光谱和红外光谱进行了研究。通过紫外–可见光滴定法估计了与Cu²⁺离子相应络合物的稳定常数值。在不同浓度的Cu²⁺离子在甲醇中作用下,化合物6的紫外–可见光吸收光谱和红外光谱的变化表明形成了非常不稳定的络合物。配体2的结构通过X射线晶体学 deduced。