Alkali metal complexation properties of resorcinarene bis-crown ethers: effect of the crown ether functionality and preorganization on complexation
作者:Kirsi Salorinne、Maija Nissinen
DOI:10.1016/j.tet.2007.11.103
日期:2008.2
The synthesis and characterization of tetramethoxy resorcinarene tribenzo-bis-crown ethers, m- and p-TBBC6, are described. The effect of the added aromatic functionality in the crownether bridge on the alkali metal complexationproperties was investigated and compared to the properties of tetramethoxy resorcinarene bis-crown-5 (BC5) by means of 1H NMR spectroscopy and X-ray crystallography. It was
合成和四甲间苯二酚芳烃三苯双-冠醚,表征米-和p -TBBC6,进行说明。研究了冠醚桥中添加的芳族官能团对碱金属络合性能的影响,并通过1 H NMR光谱法和X射线晶体学与四甲氧基间苯二甲烯双皇冠5(BC5)的性能进行了比较。发现BC5和m -TBBC6能够结合碱金属阳离子(K +,Rb +和Cs +),对Cs +的亲和力最高。阳离子,而在p -TBBC6的情况下未观察到结合,这证实了互补性和预组织对于络合亲和力的重要性。