本文選題：三維分子　切入點：傅克反應(yīng)　出處：《南京郵電大學》2017年碩士論文　論文類型：學位論文

【摘要】：自上世紀60年代立方烷首次合成以來,三維籠形化合物(以下簡稱“3D Cages”)由于具有單分散性較好、分子量固定,分子結(jié)構(gòu)全封閉等特點,從而可以有效地減弱分子間的相互作用力,并且可以有效的避免鏈間聚集,因此得到了較快的發(fā)展。迄今為止,已經(jīng)實現(xiàn)了合成方法的多樣化,并且可以通過使用不同的構(gòu)建單元來實現(xiàn)功能的多樣化,已經(jīng)廣泛應(yīng)用于氣體的分離與存儲、爆炸物檢測、以及催化等領(lǐng)域。但是,3D Cages材料在有機光電子學的報道極其稀少,造成這一現(xiàn)象的原因為目前已經(jīng)報道的3D Cages大多存在溶解度較差、共軛長度過短等問題,限制了3D Cages在有機光電子領(lǐng)域的應(yīng)用。二芳基芴由于具有獨特的光物理性能以及多位點修飾性,被廣泛應(yīng)用于有機電致發(fā)光器、有機場效應(yīng)晶體管、有機存儲器、有機激光等領(lǐng)域。我們將二芳基芴基元引入3D Cages,并在該體系中引入辛氧基取代基,從而有效的提高了3D Cages的溶解度,實現(xiàn)了溶液加工法制備OLED器件。本文以9-苯基芴醇為起點,以富電子的三苯胺為電子給體,在室溫下,使用路易斯酸催化的傅克反應(yīng)通過五種不同路徑成功合成了兩種三棱柱形芴基材料,通過對合成實驗結(jié)果進行分析,比較出了制備此類材料的相對最優(yōu)路徑,為以后同類材料的合成提供了指導思路。各項基本光物理測試結(jié)果表明:相比于開環(huán)與半開環(huán)的對比材料,此類全封閉的三維材料具有更好的光譜穩(wěn)定性、電化學穩(wěn)定性和熱穩(wěn)定性。將芴基三維材料及其衍生物作為OLED的發(fā)光層制備了簡單的發(fā)光器件,測試了相關(guān)性能。該類三維籠形材料在電化學穩(wěn)定性、光譜穩(wěn)定性上有著良好的表現(xiàn),具有較高的發(fā)光量子效率,還可以作為基本單元進一步修飾為更加復雜的結(jié)構(gòu)。因此,該類籠形材料的成功合成為以后三維發(fā)光材料的制備提供了新的思路與方法。
[Abstract]:Since the first synthesis of cubic alkanes in -40s, three-dimensional cage compounds (hereinafter referred to as "3D Cages") have the characteristics of good monodispersity, fixed molecular weight, completely closed molecular structure, etc. Thus it can effectively reduce the interaction between molecules, and can effectively avoid interchain aggregation, so it has developed rapidly. So far, the synthesis methods have been diversified. And they can diversify their functions by using different building units, and have been widely used in gas separation and storage, explosive detection, catalysis, etc. But 3D Cages materials are rarely reported in organic optoelectronics. The reason for this phenomenon is that most of the reported 3D Cages have poor solubility, too short conjugate length and other problems. Because of its unique photophysical properties and multi-site modification, diarylfluorene has been widely used in organic electroluminescent devices, field effect transistors, organic memory. In the field of organic laser, we introduced the diarylfluorene unit into 3D Cagesand the octanoxy substituent in the system, which effectively improved the solubility of 3D Cages and realized the preparation of OLED device by solution processing. Using electron rich trianiline as electron donor, two triangular-shaped fluorene based materials were successfully synthesized by using Lewis acid catalyzed Fourier reaction in five different paths at room temperature, and the experimental results were analyzed. The relative optimal path for the preparation of this kind of material is compared, which provides a guiding idea for the synthesis of similar materials in the future. The results of the basic photophysical tests show that compared with the open ring and semi open ring contrast materials, This kind of fully enclosed three-dimensional material has better spectral stability, electrochemical stability and thermal stability. A simple luminescent device was prepared by using fluorenyl three-dimensional material and its derivatives as the luminescent layer of OLED. The properties of this kind of three dimensional cage materials are tested. They have good electrochemical and spectral stability, high luminescent quantum efficiency, and can be further modified as basic units to form more complex structures. The successful synthesis of this kind of cage materials provides a new way of thinking and method for the preparation of three dimensional luminescent materials in the future.
【學位授予單位】：南京郵電大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：O625.153

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