具有聚集誘導發光性質之苯並三唑衍生物的合成及光物理性質研究

Synthesis and photophysical properties of benzotriazole-based derivatives with aggregation-induced emission properties

林怡廷(Yi-Ting Lin)

指導教授 ： 嚴詠聖

中原大學/理學院/化學研究所/碩士(2021年)

https://doi.org/10.6840/cycu202100737

摘要

本實驗使用鈀金屬催化劑，利用碳-碳鍵、碳-氮鍵耦合反應，成功合成出三種以苯並三唑為核心之化合物，引入不同的四苯基乙烯衍生物，得到TPE系列的化合物。TPE系列化合物具有聚集誘導發光的性質，利用不同的推電子基與改變共軛鏈長，藉以調控電子雲的定域化程度，提升HOMO能階，有利於分子內電子的躍遷。
TPE系列化合物的螢光放光位置不受溶劑效應所影響，約在530 nm，屬藍綠色放光。而化合物TPE-1，在薄膜態時放光強度出現顯著提升，且在觀察不同比例的混和溶劑實驗中，當水的比例(不良溶劑)提高，也出現了高放光強度，可看出具有優秀的聚集誘導發光性質。

關鍵字

聚集誘導發光 ； 苯並三唑

並列摘要

Benzotriazole-based materials tethered with tetraphenylethylene derivatives were successfully synthesized via palladium complex catalyzed C-C and C-N coupling reaction. These new chromophores have the aggregation-induced-emission properties. The Opto-properties can be tuned by different electron donors and the conjugation length, which could lead to a higher HOMO. Higher HOMO energy level is beneficial for intramolecular charge transfer.
There is no obvious solvent effect for fluorescence emission, and they are all emitted from the blue-green region at about 530 nm. In the film state, compound TPE-1 shows a significant increase in the emission intensity. In addition, in the aggregation-induced emission test, when the proportion of water (poor solvent) increased, higher emission intensity also appeared, which shows that TPE-1 has excellent properties of aggregation-inducedemission.

並列關鍵字

aggregation-induced emission ； benzotriazole-based derivatives

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