本文選題：共價(jià)有機(jī)框架材料 + 吲哚并咔唑��； 參考：《蘭州大學(xué)》2017年碩士論文

【摘要】：共價(jià)有機(jī)框架材料(Covalent Organic Frameworks,COFs)是一類由共價(jià)鍵連接的新興晶型有機(jī)多孔材料。該領(lǐng)域目前主要集中在二維或三維中新拓?fù)浣Y(jié)構(gòu)的開發(fā)或者基于不同功能化的應(yīng)用上。吲哚并咔唑是一類非常重要的雜環(huán)化合物,其結(jié)構(gòu)本身也是功能基元,在光電領(lǐng)域具有廣泛的應(yīng)用,而且它還具有合成簡(jiǎn)單和易于官能團(tuán)化等優(yōu)點(diǎn)。因此,本論文的主要研究?jī)?nèi)容是基于吲哚并咔唑結(jié)構(gòu)COFs材料的構(gòu)筑及其在熒光識(shí)別方面的應(yīng)用。論文的第一章簡(jiǎn)要的綜述了COFs材料和吲哚并咔唑的基本性質(zhì)及其在光電方面的應(yīng)用。論文的第三章,我們利用取代基不同的三種線性ICZ前體和不同的醛合成了五例新的COFs材料,分別記為L(zhǎng)ZU-170,LZU-171,LZU-172,LZU-173和LZU-174,希望研究前體結(jié)構(gòu)與材料熒光性能的關(guān)系。結(jié)果表明,改變前體的類型對(duì)材料的熒光影響很大;而對(duì)前體進(jìn)行結(jié)構(gòu)上的細(xì)微修飾對(duì)對(duì)材料的熒光能夠起到細(xì)調(diào)的作用。論文的第四章,我們測(cè)試了部分材料的熒光識(shí)別效果,發(fā)現(xiàn)在固體熒光識(shí)別中,帶有吸電子基的芳香化合物蒸氣對(duì)材料的熒光有淬滅效果,例如硝基苯在20 s內(nèi)能將LZU-170的熒光淬滅60%;而帶有供電子基的有一定的熒光增強(qiáng)效果,其中4-氯苯甲醚在90 s內(nèi)能將LZU-170的熒光增強(qiáng)20%。而且發(fā)現(xiàn)對(duì)材料結(jié)構(gòu)的微調(diào)對(duì)熒光識(shí)別效果有影響。
[Abstract]:Covalent Organic frameworks (COFs) is a kind of new organic porous materials with covalent bonding. At present, this field is mainly focused on the development of new topologies in two or three dimensions or applications based on different functions. Indole carbazole is a very important class of heterocyclic compounds, its structure itself is also a functional unit, it has a wide range of applications in the field of photoelectricity, and it also has the advantages of simple synthesis and easy functionalization. Therefore, the main research content of this thesis is the construction of COFs material based on indole carbazole structure and its application in fluorescence recognition. In the first chapter, the basic properties of COFs and indole carbazole and their applications in photoelectricity are briefly reviewed. In the third chapter, we synthesize five new COFs materials by using three linear ICZ precursors with different substituents and different aldehydes, which are described as LZU-170, LZU-171, LZU-172 LZU-173 and LZU-174, respectively. We hope to study the relationship between the structure of precursors and the fluorescence properties of the materials. The results show that changing the type of precursor has a great influence on the fluorescence of the material, while the fine modification of the precursor structure can play a fine-tuning role on the fluorescence of the material. In the fourth chapter, we have tested the fluorescence recognition effect of some materials, and found that in the solid fluorescence recognition, the vapor of aromatic compounds with electron absorbing group has quenching effect on the fluorescence of the material. For example, nitrobenzene can quench the fluorescence of LZU-170 in 20 s, while those with electron supply can enhance the fluorescence of LZU-170 in 90 s, and 4-chlorophenyl ether can enhance the fluorescence of LZU-170 in 90 s. It is also found that the fine tuning of the material structure has an effect on the fluorescence recognition.
【學(xué)位授予單位】：蘭州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：O626

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