酰胺咪唑盐离子的合成及其螺旋扭曲组装结构分析  

Synthesis of amide imidazolium salt and its helical twisted assembly structure

作　　者：陈慧茹[1] 杨雪燕 肖玉龙[1] 彭雄伟[1] 程慧芳[1] 程晓红[1] 

机构地区：[1]教育部自然资源药物化学重点实验室,云南大学化学科学与工程学院,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2017年第6期1030-1034,共5页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金(21364017,21664105);云南省教育厅重大项目(ZD2015001);云南大学研究生科研创新基金(YNUY201682,YNUY201620)

摘　　要：以Ullmann反应为关键步骤合成了一种新型酰胺咪唑溴化盐离子I,其结构通过1H NMR、13C NMR和元素分析得到验证.采用偏光显微镜(POM)、差示扫描量热仪(DSC)等测试手段研究了其相态行为.测试表明,化合物I能组装形成螺旋扭曲的微观手性条纹状球晶结构,球晶相邻两层间的径向长度差一定,说明层状的扭曲是严格统一、有规律的.建立了化合物I的分子自组装模型,并初步阐述了螺旋扭曲的微观手性条纹状球晶结构的形成原因.In this paper, a novel amide imidazolium bromide I was synthesized via Ullmann reaction as key step, the structure of compound I was identified by ^1 H NMR, ^13 C NMR and elemental analysis.Phase transitional behavior of compound I was investigated by polarizing optical microscopy （POM） , differential scanning calorime- try （DSC）.The results showed that compound I could self-assemble into helical twisted microscopic chiral stripe -like spherulitic structure, the radial length difference between adjacent spherulites was idefinite ,which indicated that the layered twist was strictly uniform and regular.The molecular self-assembly model of compound I was es- tablished and the formation mechanism of helical twisted micro-chiral stripe spherulitic structure was preliminari- ly discussed.

关 键 词：Ullmann偶合反应 咪唑盐 离子液体 螺旋扭曲 自组装 

分 类 号：O626.12[理学—有机化学] TB34[理学—化学]