一类氮杂双咪唑鎓小环番的合成及阴离子识别性能研究

Synthesis and Anions Recognition of a Series of N-hetero Bis-imidazolium Cyclophanes

以氮杂双咪唑类化合物1和2为原料,在高度稀释的条件下,合成了氮杂双咪唑类小环番3、4、5;经IR、1H NMR和MS谱确证其结构.采用荧光光谱法分别研究了所合成环番对Cl-、Br-、I-、CH3COO-、PhCOO-、HSO4-六种常见阴离子的络合选择性.研究表明:三个氮杂双咪唑鎓类环番对六种阴离子具有不同的识别作用.

The target compounds 3, 4, 5 have been synthesized via N-hetero bis-imidazole derivatives 1, 2 under high dilution condition. The structures of N-hetero bis-imidazolium small cyclophanes 3, 4, 5 were confirmed by IR, 1H NMR and MS spectra. The bond characters of three cyclophanes for Cl- , Br- , I- , CH3COO-, PhCOO- and HSO4- , were studied by fluorescence-emission spectra. The results showed that N-hetero bis-imidazolium cyclophanes 3, 4, 5 had different recognition abilities to common anions.