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研究生: 呂幸紋
論文名稱: 設計並合成含有醯胺官能基的乙炔蒽和乙炔芘衍生物之有機凝膠分子
Design and Synthesis of Ethynylanthracene and Ethynylpyrene Derivatives with Amide-functionalized Organogelators
指導教授: 孫世勝
Sun, Shih-Sheng
學位類別: 碩士
Master
系所名稱: 化學系
Department of Chemistry
論文出版年: 2014
畢業學年度: 102
語文別: 中文
論文頁數: 148
中文關鍵詞: 有機凝膠分子有機金屬凝膠分子自組裝
英文關鍵詞: Organogelators, Metallogelators, Self-assembly, Anthracene, Pyrene
論文種類: 學術論文
相關次數: 點閱:135下載:1
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  • 我們成功合成出一系列有機與有機金屬凝膠,DU97、DU135、DU157和DU169,利用乙炔蒽和乙炔芘與本實驗室發展出易形成凝膠結構合成而得最終產物。這一系列化合物在不同有機溶劑中可以形成凝膠。超分子凝膠的形成主要透過凝膠分子的自組裝,藉由氫鍵作用力、π-π作用力以及C-H-π作用力,接著與溶劑分子間形成次級的作用力而形成凝膠。我們利用1H NMR、吸收光譜及放光光譜證實分子間作用力及光物理變化,分子間自組裝主要以J-type aggregation形式進行,經由SEM及TEM觀察其微觀組裝結構,皆呈現典型的纖維結構。在這一系列凝膠中,DU97具有較佳的凝膠能力,在環己烷中形成穩定的凝膠,臨界凝膠濃度為2.9 mg/mL。另外,含有兩價的鉑金屬之DU135和DU157,表現出特別的光物理性質,DU135除氧後同時具有雙重發光特性,分別在415 nm的螢光及655 nm的磷光。相對的,DU157則僅觀察到438 nm之螢光。然而,DU157在含氯的溶劑中會形成氧加成產物,探討其可能機制,推論可能經由自由基路徑產生單重態氧氣加成於蒽上之反應。

    A series of organogelators and metallogelators, DU97, DU135, DU157, DU169 was designed and synthesized. These gelators are composed of ethynylanthrancene and ethynylpyrene derivatives with long-chain pyridine-2,6-dicarboxamide. These gelators have shown great ability to immobilize a variety of organic solvents to form gels. The formation of supramolecular gels is achieved from self-assembly of gelator molecules via cooperative hydrogen bonding, π-π stacking and C-H-π interactions followed by secondary interations with solvent molecules. The presence of aggregates was confirmed by variable-temperature 1H NMR and absorption/emission spectroscopy. The supramolecular aggregates in these organogels are considered to be the J-type aggregation. The xerogels studied by SEM and TEM revealed fiber-like morphologies. Among all gelators, DU97 exhibits the greatest ability to form stable gel in cyclohexane with a critical gelation concentration of 2.9 mg/mL. DU135 and DU157 containing Pt(II) metal centers exhibit unique photophysical properties. DU135 exhibits dual emission with fluorescence at 415 nm and strong phosphorescence at 655 nm. In contrast, DU157 does not show any detectable phosphorescence but only fluorescence at 438 nm. Oxygen addition product was identified for DU157 in chlorinated solvent under UV irradiation. The mechanism for the observed photochemistry likely involves singlet oxygen and proceeds with free-radical pathways.

    中文摘要 I Abstact II 謝誌 III 化合物對照表 IV 目錄 VI 圖目錄 IX 表目錄 XIX 第一章 緒論 1 1.1 前言 1 1.1.1 凝膠的定義 1 1.1.2 凝膠與溶劑 2 1.1.3 凝膠的形成 2 1.1.4 凝膠的分類 3 1.2 有機凝膠的分類 4 1.2.1 含有amide的有機凝膠 4 1.2.2 含有芳香環的有機凝膠 6 1.2.3 含有anthracene的有機凝膠 8 1.2.4 含有pyrene的有機凝膠 14 1.2.5 含有機屬錯合物的有機金屬凝膠 17 1.2.6 含有platinum-acetylide的有機金屬凝膠 20 1.2.7 雙組成份的有機凝膠 24 1.2.8 研究動機 27 第二章 實驗部分 29 2.1 分析儀器 29 2.2 實驗藥品 32 2.3 實驗流程 33 第三章 結果與討論 39 3.1 凝膠分子DU97、DU169、DU157、DU135光物理性質 39 3.2 凝膠分子自組裝行為 47 3.2.1 不同溶劑下的凝膠測試 47 3.2.2 變溫核磁共振實驗 50 3.2.3 變溫UV-Vis吸收光譜、變溫放射光譜 59 3.2.4 稀薄溶液、凝膠、薄膜狀態的吸收及放光光譜 64 3.2.5 分子聚集型態研究 73 3.2.6 長鏈疏水基團與金屬中心對於形成凝膠生成的效應 77 3.2.7 凝膠分子DU157的photolysis實驗 80 3.2.8 碳氫長鏈與碳氟長鏈之探討 83 第四章 結論 84 第五章 實驗合成步驟 85 第六章 參考資料 95 第七章 附錄 102 7.1 凝膠分子DN143、DT97、DX23、DX101及DX97的數據 102 7.1.1 變溫UV-Vis吸收光譜、變溫放射光譜 102 7.1.2 變溫核磁共振實驗 106 7.1.3 分子聚集型態 108 7.1.4 凝膠分子DX101的photolysis實驗 111 7.1.5 NMR光譜圖 112

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