合成Fluoren-9-Ylidene Malononitrile和Fluorenone的衍生物並探討此化合物光物理性質

Synthesis And Photophysics Characterization Of Fluoren-9-One And Fluoren-9-Ylidene-Malononitrile Derivatives

張欣涵(Hsin Han Chang)

指導教授 ： 黃聲東

國立臺北科技大學/工程學院/生物科技研究所/碩士(2012年)

https://doi.org/10.6841/NTUT.2012.00192

摘要

本論文研究芴酮(Fluorenone)的衍生物和Fluoren-9-Ylidene Malononireile 衍生物，並用紫外可見光譜儀、螢光光譜儀來探討在不同性質溶劑下光物理特性。我們設計合成四種新的螢光分子，以Fluorene為骨架，分別在9號碳導入電子親核力強的基團(Cyano)、及酮基(CO group)，以及在3,6號碳分別導入 Ethynyl-pyridine 基團。我們從結構、分子取代基、溶劑效應之不同角度來探討所影響的UV-Vis吸收和發射（熒光）帶的位置、強度和形狀的變化。而在檢測溶劑方面，我們分為極性和非極性溶劑及質子及非質子溶劑，同時也計算了螢光量子產率(quantumyield)。對於合成之中間物以及最後產物可以藉由核磁共振光譜(NMR)、質譜儀(Mass)、IR等光譜鑑定其官能基的變化以及結構的形成。

關鍵字

螢光量子產率芴酮衍生物 ； 溶劑顯色效應

並列摘要

The synthesis of four fluorene-based compounds when Fluorenone (CO) and Fluoren-9-Ylidene Malononireile C(CN)2 derivatives were introduced into position 9 of molecule by reported. The structures of Fluorenone (CO) and Fluoren-9-Ylidene Malononireile C(CN)2 derivatives were confirmed Mass spectrometry, FT-IR and NMR. The optical properties were analyzed by Absorption and fluorescence properties of compounds in polar solvents and observed solvatochromic behavior. Subsequently the fluorescence quantum yield of compounds was calculated.Then showing that higher values were obtained for compounds when CO derivative was present in molecule.

並列關鍵字

fluorescence quantum yield ； solvatochromic ； fluorenone derivatives

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