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Preparation and photoluminescent property of three 5-amino benzothiadiazoles (5-amBTDs).
Chemistry - An Asian Journal ( IF 3.5 ) Pub Date : 2020-09-17 , DOI: 10.1002/asia.202000980
Zaibin Wang 1 , Zhichao Wang 1 , Ping Lu 1 , Yanguang Wang 1
Affiliation  

Three D−A compounds were designed and synthesized based on a benzothiadiazole acceptor. Azepane (AP), iminodubenzyl (IDB) and iminostilbene (ISB) were used, respectively, as donors and installed on the 5‐position of BTD to afford 1, 2 and 3, respectively. Their photophysical properties in different states (solution, film, crystal, and powder) are systematically investigated. Among them, AIE‐active compounds 2 and 3 were found to have good sensitivity toward viscosity and display quite good linear relationship with an increase in viscosity. Compound 2 displayed dual emission in solutions which largely depended on the polarity of the solvent. Meanwhile, compound 2 exhibits a mechanochromic character with disappearance and reappearance of a dual‐emissive peak induced by mechanical grinding and solvent fuming. Furthermore, these three compounds can be used in the fabrication of blue OLED devices.

中文翻译:

三种5-氨基苯并噻二唑(5-amBTDs)的制备及光致发光性能。

基于苯并噻二唑受体设计并合成了三种D-A化合物。氮杂环庚烷(AP),iminodubenzyl(IDB)和氨基芪(ISB)分别使用,作为供体和安装在BTD的5位,得到123分别。系统地研究了它们在不同状态(溶液,薄膜,晶体和粉末)下的光物理性质。其中,发现AIE活性化合物23对粘度具有良好的敏感性,并且随着粘度的增加显示出很好的线性关系。化合物2在溶液中显示双重发射,这在很大程度上取决于溶剂的极性。同时,化合物2表现出机械变色特性,由机械研磨和溶剂发烟引起的双发射峰消失并重新出现。此外,这三种化合物可用于制造蓝色OLED器件。
更新日期:2020-11-04
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