2-(1-萘基偶氮)-咪唑的合成及组装Langmuir-Blodgett膜  

Synthesis of 2-( naphthalenyl-1-diazenyl)-1H-imidazole and the self-assembly of Its Langmuir-Blodgett film

作　　者：汪小芳[1] 徐继君[1] 金传明[1] 

机构地区：[1]湖北师范学院,污染物分析与资源化技术湖北省重点实验室稀有金属化学湖北省协同创新中心,湖北黄石435002

出　　处：《化学研究与应用》2015年第5期608-611,共4页Chemical Research and Application

基　　金：国家自然科学基金项目(21171053)资助;湖北省高校优秀中青年科技创新团队(T201311)资助

摘　　要：合成了一个非典型两亲性分子,2-(1-萘基偶氮)-咪唑(2-NDIM),对它在气/液界面上的组装和LB膜性质进行了研究。结果表明:2-NDIM不能在水相表面形成Langmuir膜,在Ag NO3水溶液亚相中能形成稳定、均匀的配位聚合物单分子膜,组装的LB膜为J-聚集体,最大吸收波长为403nm,归属于反式-N=N-双键的π-π*电子跃迁,光激发LB膜中偶氮基团的反-顺异构化作用不明显,具有较低的反-顺光异构化量子产率。An non-classical amphiphilic molecule,2-（naphthalenyl-1-diazenyl）-1H-imidazole（2-NDIM）,was synthesized. Its Lang-muir-Blodgett（ LB） film on the air/water surface wasn’t formed. However,the stable and orderly LB film could be self-assembly on the air/AgNO3 solution sub-phase surface. The LB film of coordination polymer was J-aggregate with the absorption of 403nm as characteristic π-π＊absorption band of trans-N=N-double-bond. The trans-cis photochromic properties of LB film were much weak with significantly lower quantum yield.

关 键 词：2-(1-萘基偶氮)-咪唑 LB膜 J-聚集体 自组装 光致异构 

分 类 号：O614[理学—无机化学]