【摘要】 以合成的三种的咪唑[4,5,f]-1,10-菲咯啉衍生物为客体,以瓜环(cucurbit[n]uriln=6~8)为主体,利用1H NMR技术,荧光光谱和紫外吸收光谱方法,测试了主客体相互作用形式、形成包结物的结构特征及其光学性质,三种方法得到的结果相同。研究表明,六元瓜环(Q[6])仅能与2-(4-甲基苯基)-咪唑-[4,5,f]菲咯啉(W1)盐酸盐相互作用(包结比为1∶1);七元瓜环(Q[7])与三种客体2-(4-甲基苯基)-咪唑-[4,5,f]菲咯啉,2-(2-甲基苯基)-咪唑-[4,5,f]菲咯啉(W2)以及2-(3-甲氧基苯基)-咪唑-[4,5,f]菲咯啉(W3)的盐酸盐均以1∶1的物质的量比发生相互作用;而八元瓜环(Q[8])除与W1形成的是1∶2的包结物外,与另外两种客体W2,W3也是形成1∶1的包结配合物。更多还原

【Abstract】 The interaction structures and optical properties of host-guest of cucurbit[n=6-8]urils with synthesized three imidazo-[4,5,f]1,10-phenathroline derivates were investigated by using 1H NMR technique, fluorescence spectrophotometry, and ultraviolet spectrophotometry. The experimental results reveal that cucurbit [6] uril (Q[6]) can only interact with guest salt of 2-(4-methyl)-phenyl-imidazo-[4,5,f]1,10-phenathroline (W1) with a ratio of 1∶1; however, cucurbit [7] uril (Q[7])can interact with all three guest salts of 2-(4-methylphenyl)-imidazo-[4,5,f]1,10-phenathroline(W1), 2-(2-methylphenyl)-imidazo-[4,5,f]1,10-phenathroline(W2), and 2-(3-methyloxyl phenyl)-imidazo-[4,5,f]1,10-phenathroline(W3) with the same ratio of 1∶1; cucurbit [8] uril (Q[8]), except interaction with W1 with a ratio of 1∶2, can also interact with W2 and W3 with a ratio of 1∶1.更多还原