咪唑[1,5-a]吡啶型离子液体的合成及分子识别性能

Synthesis and recognition properties of imidazo[1,5-a]pyridinium salts

以联苯胺为原料,通过三组份串联反应一步合成咪唑[1,5-a]吡啶型离子(L),其结构经1H NMR,13C NMR,IR和X-射线单晶衍射表征。利用荧光光谱研究了L在乙腈中对对苯二甲酸(A1)、4,4'-联吡啶(A2)、吡啶(A3)、丙二酸(A4)、1,8-二氨基萘(A5)等分子的识别性能。结果表明,L对对苯二甲酸具有选择识别性能。

Imidazo[1,5-a]pyridinium salts（L）, was synthesized with aniline by a facile three-component coupling. The structure was confirmed by 1 H NMR and 13 C NMR,IR,X-ray crystal diffraction analysis. The recongnition properties of L with p-phthalic acid （A1）,4,4′-dipyridyl（A2）,pyridine（A3）,propanedioic acid（A4）,1,8-diaminonaphthalene（A5）were investigated in acetonitrile by fluorescence. The results showed that L exhibited selectively recognition properties for p-phthalic acid.