摘要
设计、合成了结构新颖的1,4-二(5’-醛基噻吩基-2’)-2,5-二辛氧基苯,并对其结构进行了表征.应用钯催化剂以三丁基锡噻吩与取代的对-二溴苯(3)反应(Stille偶合)生成取代的苯基噻吩(4),产率达到95.2%.由于目标产物(5)本身具有多芳环共轭体系,其荧光效应相当强烈,在氯仿溶液中紫外-可见吸收(UV-vis)和荧光发射(PL)的最大波长分别为413nm和477nm,固态荧光发射(PL)波长为504nm.
Using thienyl stannane and palladium-catalyzed （Stille coupling）, 1,4-di（5＇- carbaldehyde-thiophen-2＇-yl）-2,5-dioctyloxy-benzene was synthesized by four steps, the structure was determined by NMR, IR and elemental analysis. The UV-vis absorption and photoluminescence （PL） properties were measured. The absorption bands correspond to π-π^＊ transition with the peak at 413 nm in chloroform solution, the compound exhibited an emissive peak at 477 nm and 504 nm in chloroform solution and solid state respectively.
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
2007年第2期236-240,共5页
Journal of Central China Normal University：Natural Sciences
基金
国家自然科学基金资助项目(60325412
90406021)
关键词
合成
Stille偶合
共轭化合物
荧光性质
synthesis
Stille coupling
conjugated compound photoluminescence property
