本篇論文的目的在於研究親電性環化方法合成多芳香環化合物。利用親電性環化方法合成spiro[4,5]trienone以及phenanthrene衍生物。在這個基礎下，設計一套簡單的合成流程，用以合成二聯苯□衍生物，具有步驟短、產率高的優點。
我們也對這些二聯苯□衍生物進行一系列的物理性質研究，包括吸收波長、放光波長、量子效率以及循環伏安電位等。實驗結果可證明改變取代基對於物理性質有一定的影響，未來可依據不同需求改變官能基，達到材料應用的目的。

The dissertation discusses the synthesis of poly-aromatic hydrocarbons through electrophilic cyclization using ICl complex. We have succeeded in using this method to synthesize spiro[4,5]trienone as well as the phenanthrene derivatives. Under this foundation, we design a set of simple synthesis procedure to synthesize the dibenzo[g,p]crysene derivatives. This process requires a few steps and with excellent yields.
We also investigated on the physical properties of these dibenzo[g,p]crysene derivatives, which includs UV, PL, CV, and quantum efficiency. We found the replacement of functional groups has shown effect on the physical features. Furthermore, this present work may focus on changing different functional groups, we could apply these materials in industries.

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