| 研究生: |
許凱婷 Kai-Ting Hsu |
|---|---|
| 論文名稱: |
含噻吩基配位聚合物之合成,結構與螢光性質之探討 Synthesis, Structures, and Luminescent Properties of Thiophenyl-Containing Coordination Polymers |
| 指導教授: |
呂光烈
Kuang-Lieh Lu 洪政雄 Chen-Hsiung Hung 李光華 Kwang-Hwa Lii |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 化學學系 Department of Chemistry |
| 論文出版年: | 2019 |
| 畢業學年度: | 107 |
| 語文別: | 中文 |
| 論文頁數: | 151 |
| 中文關鍵詞: | 配位聚合物 、噻吩基 、螢光 、水熱合成 |
| 外文關鍵詞: | coordination Polymers, thiophene, luminescence, hydrothermal |
| 相關次數: | 點閱:12 下載:0 |
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本研究採用有機配子 2,5-(thiophenediyl)dibenzoic acid (H 2 TDB)分別與不同的金屬鹽類反應,製備七個有機金屬配位聚合物,以單晶 X-ray 繞射解析其構造,並研究其結構及螢光性質。
本論文分為三個部分,第一部份化合物 [Zn(TDB)(H2O)]n (1)、[Co(TDB)(H2O)2]n (2)、[Cd2(TDB)2(H2O)3]n (3),是以過渡金屬離子與 H2TDB 反應形成不同的配位聚合物,透過單晶繞射分析的結果顯示出化合物 1 及化合物 3 具有 2D 結構,而化合物 2 則是3D 結構。其中由於化合物 1 及化合物 3 的中心金屬具有 d 10 的電子軌域,再加上有機配體本身的螢光特性,因此化合物 1 及 3 具有顯著的發光性質;除此之外,化合物 3 為非中心對稱的結構,因此也對其圓二色性 (CD) 進行探討,並透過二次倍頻 (SHG) 證實化合物 3 具有非線性光學的性質。
化合物 [Ln2(TDB)3(NMP)(H2O)]n (Ln = Tb (4)、Eu (5)與 Gd (6))是以鑭系金屬離子與 H2TDB 反應製備了相同結構、不同中心金屬的 2D 配位聚合物,且具有顯著的螢光特性。
化合物 [Mg(TDB)(H2O)2]n (7) 則是以鹼土金屬鎂鹽與 H2TDB 反應,形成結構類似化合物 2 的 3D 的配位聚合物,並同樣的對其進行螢光性質的探討。
In this thesis, a series of supramolecular compounds and coordination polymers were synthesized by the reaction of the organic ligand, 2,5-(thiophenediyl)dibenzoic acid (H2TDB), and different types of metal ions via self-assembly processes. Their structures and properties were studied and discussed.
Compound [Zn(TDB)(H 2 O)] n (1), [Co(TDB)(H2O)2]n (2), and [Cd2(TDB)2(H2O)3]n (3), were produced by the reaction of zinc salts, cobalt salts or cadmium salts, respectively, with the H2TDB ligand. The structures of the compounds were characterized by single-crystal X-ray diffraction analyses. Compounds 1 and 3 adopt 2D structures and compound 2 forms a 3D structure. Because of the d 10 electron orbital of metal centers (Zn in 1 and Cd in 3) and the luminescence property of H2TDB, the luminescence properties of these compounds were investigated. In addition, the space group of compound 2 showed that it has a non-centrosymmetric structure, so its circular dichroism and nonlinear optical property were examined.
Compounds [Ln2(TDB)3(NMP)(H2O)]n (Ln = Tb (4)、Eu (5) and Gd (6), NMP = 1-Methyl-2-pyrrolidone) were synthesized by the reaction of terbium salts, europium salts, orgadolinium
salts with the H 2 TDB ligand. A series of isostructures with 2D layers were produced and their luminescence properties were also studied and discussed.
Compound [Mg(TDB)(H2O)2]n (7) was synthesized by treating a magnesium salt with the H2TDB ligand. The single-crystal X-ray diffraction analysis showed that compound 7 adopts a
2D structure. Its luminescence property was also examined through emission studies.
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