含柔性间隔基和末端烷氧基的双噁二唑衍生物的合成及性质  

Synthesis and Properties of Dimeric 1,3,4-Oxadiazoles Derivatives with Flexible Linkers and End-alkoxy Groups

作　　者：王欢[1] 张宁[1] 温善鹏[1] 田文晶[1] 

机构地区：[1]吉林大学超分子结构与材料教育部重点实验室,长春130023

出　　处：《高等学校化学学报》2007年第2期342-345,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20474023);国家重点基础研究发展计划项目(批准号:2002CB613401);长江学者和创新团队发展计划项目(批准号:IRT0422);留学回国人员基金;吉林省科技发展计划项目(批准号:20050504)资助

摘　　要：合成了一系列含柔性间隔基和末端烷氧基的双噁二唑化合物OXDs,利用1HNMR、元素分析和FTIR等手段对其分子结构进行了表征,并用UV-Vis,PL,CV和DSC等方法对其性质进行了研究.研究结果表明,对甲氧基苯基与1,3-二(1,3,4-噁二唑基)苯基之间形成分子内激基复合物,而端位烷氧基会阻碍分子内激基复合物的形成;OXDs化合物具有良好的电子注入、电子传输及空穴阻挡的特性;当末端取代基较短(或无末端取代基)时,固体样品中的晶态结构含量较少,经热处理后能够形成稳定的非晶态.Dimeric 1,3,4-oxadiazoles derivatives with flexible linkers and end-alkoxy groups, namely 1,3-bis [ 2- （4-alkyoxyphenyl） -1,3,4-oxidiazole-5-yl ] -5- [ 3 or 6- （4-methoxyphenoxy） alkoxy ] -benzene （OXDs） were synthesized, and the chemical structures of the OXDs were confirmed by 1H NMR, elemental analysis and FTIR. The optical, electrochemical and thermal properties of the OXDs were investigated by using UV-Vis, PL, CV and DSC. It is indicated that intramolecular exciplex can be formed between the 4-methoxyphenoxy and bis[2-（4-alkyoxyphenyl）-1 ,3,4-oxidiazol] and the end-alkoxy groups could restrain the formation of the intramolecular exciplex. The electrochemical properties of the OXDs show that OXDs were favorable for the electron injecting, transporting and hole blocking. DSC results prove that when the OXDs were substituted with shorter alkoxy groups（ or without substituents）, the crystal contents in OXDs were less in solid state and the stable non-crystalline morphology can be formed after heat-treating.

关 键 词：1 3 4-噁二唑 分子内激基复合物 电子传输 

分 类 号：O649.5[理学—物理化学]