化学研究与应用
化學研究與應用
화학연구여응용
CHEMICAL RESEARCH AND APPLICATION
2015年
5期
608-611
,共4页
2-(1-萘基偶氮)-咪唑%LB膜%J-聚集体%自组装%光致异构
2-(1-萘基偶氮)-咪唑%LB膜%J-聚集體%自組裝%光緻異構
2-(1-내기우담)-미서%LB막%J-취집체%자조장%광치이구
2-(naphthalenyl-1-diazenyl)-1H-imidazole%LB film%J-aggregate%self-assembly%photochromism
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AgNO3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。
閤成瞭一箇非典型兩親性分子,2-(1-萘基偶氮)-咪唑(2-NDIM),對它在氣/液界麵上的組裝和LB膜性質進行瞭研究。結果錶明:2-NDIM不能在水相錶麵形成Langmuir膜,在AgNO3水溶液亞相中能形成穩定、均勻的配位聚閤物單分子膜,組裝的LB膜為J-聚集體,最大吸收波長為403nm,歸屬于反式-N=N-雙鍵的π-π*電子躍遷,光激髮LB膜中偶氮基糰的反-順異構化作用不明顯,具有較低的反-順光異構化量子產率。
합성료일개비전형량친성분자,2-(1-내기우담)-미서(2-NDIM),대타재기/액계면상적조장화LB막성질진행료연구。결과표명:2-NDIM불능재수상표면형성Langmuir막,재AgNO3수용액아상중능형성은정、균균적배위취합물단분자막,조장적LB막위J-취집체,최대흡수파장위403nm,귀속우반식-N=N-쌍건적π-π*전자약천,광격발LB막중우담기단적반-순이구화작용불명현,구유교저적반-순광이구화양자산솔。
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.