高等学校化学学报
高等學校化學學報
고등학교화학학보
Chemical Journal of Chinese Universities
2015年
10期
1919-1923
,共5页
陈仕焰%崔晓伟%王传增%倪新龙%马培华%张建新
陳仕燄%崔曉偉%王傳增%倪新龍%馬培華%張建新
진사염%최효위%왕전증%예신룡%마배화%장건신
瓜环%轮烷%紫精%邻苯二甲酰亚胺
瓜環%輪烷%紫精%鄰苯二甲酰亞胺
과배%륜완%자정%린분이갑선아알
Cucurbituril%Rotaxane%Viologen%Phthalimide
设计合成了2种不同碳链长度的客体分子1,1'-二甲基邻苯二甲酰亚胺基-4,4'-联吡啶溴化物(G1)和1,1'-二丁基邻苯二甲酰亚胺基-4,4'-联吡啶溴化物(G2)。利用紫外-可见吸收光谱、核磁共振波谱和等温滴定量热等方法研究了客体分子 G1和 G2与六元(Q[6])和七元瓜环(Q[7])的超分子自组装方式。结果表明,在加热回流情况下 G1与 Q[6]利用滑移法能与紫精基团包结形成[2]轮烷结构,而 Q[7]在常温下就能滑过封端基团邻苯二甲酰亚胺与紫精基团包结形成[2]准轮烷结构。
設計閤成瞭2種不同碳鏈長度的客體分子1,1'-二甲基鄰苯二甲酰亞胺基-4,4'-聯吡啶溴化物(G1)和1,1'-二丁基鄰苯二甲酰亞胺基-4,4'-聯吡啶溴化物(G2)。利用紫外-可見吸收光譜、覈磁共振波譜和等溫滴定量熱等方法研究瞭客體分子 G1和 G2與六元(Q[6])和七元瓜環(Q[7])的超分子自組裝方式。結果錶明,在加熱迴流情況下 G1與 Q[6]利用滑移法能與紫精基糰包結形成[2]輪烷結構,而 Q[7]在常溫下就能滑過封耑基糰鄰苯二甲酰亞胺與紫精基糰包結形成[2]準輪烷結構。
설계합성료2충불동탄련장도적객체분자1,1'-이갑기린분이갑선아알기-4,4'-련필정추화물(G1)화1,1'-이정기린분이갑선아알기-4,4'-련필정추화물(G2)。이용자외-가견흡수광보、핵자공진파보화등온적정량열등방법연구료객체분자 G1화 G2여륙원(Q[6])화칠원과배(Q[7])적초분자자조장방식。결과표명,재가열회류정황하 G1여 Q[6]이용활이법능여자정기단포결형성[2]륜완결구,이 Q[7]재상온하취능활과봉단기단린분이갑선아알여자정기단포결형성[2]준륜완결구。
Two guests based on N,N'-phthalimide substituted 4,4'-dipyridyl with different alkyl chain lengths were synthesized ( G1 and G2). The supramolecular self-assemblies of G1 and G2 with cucurbit [6] uril (Q[6]) and cucurbit[7] uril(Q[7]) were evaluated by UV-Vis spectra, hydrogen nuclear magnetic reso-nance( 1 H NMR) and isothermal titration calorimetry(ITC). The experiment results suggested that [2]rotax-ane can be only formed between G1 and Q[6] in boiling aqueous solution by slipping. On the contrary, [2] pseudorotaxane can be easily formed between Q[7] and G1 or G2 in aqueous solution at room temperature.