甲基咪唑紫質與對苯二胺之電化學作用研究

Electrochemical Studies of the Interactions between 1-methylimidazolyl porphyrins and p-phenylenediamine

彭荏婉(Ren-Wan Peng)

指導教授 ： 蘇玉龍

國立暨南國際大學/科技學院/應用化學系/碩士(2015年)

https://doi.org/10.6837/NCNU.2015.00215

摘要

本論文為研究甲基咪唑紫質與甲基咪唑鋅紫質的電化學性質，及其與對苯二胺之間的電化學作用。循環伏安法實驗中，觀察到對苯二胺氧化後與紫質的甲基咪唑取代基作用形成電化學誘導氫鍵的現象，觀察其氫鍵生成前後電化學性質的改變，探討對苯二胺與紫質產生電化學誘導氫鍵後，對紫質氧化的影響。
單取代甲基咪唑鋅紫質在中性狀態下為二聚體，因其溶解度不佳，在循環伏安法中不易進行電化學分析，利用形成常數較高的軸配位基與鋅紫質進行光譜滴定，觀察鋅紫質二聚體與配位基透過螯合作用轉換為單體的光譜特性改變，再經由光可透過的薄層電極(OTTLE)進行光譜電化學分析。

關鍵字

甲基咪唑紫質 ； 甲基咪唑鋅紫質 ； 電化學 ； 光譜電化學 ； 電化學誘導氫鍵

並列摘要

The electrochemical and spectral properties of 1-methylimidazolylporphyrins and 1-methylimidazolylzincporphyrin and their interactions with p-phenylenediamine were identified in this study. By employing cyclic voltammetry, electrochemically induced hydrogen bonding between imidazole substituents of porphyrins and oxidized phenylenediamine were acknowledged. The changes of their electrochemical behavior with and without the presence of phenylenediamine were also discussed in this terms
1-methylimidazolezincporphyrin is a dimer form in its neutral state because of its poor solubility in solvent. So it is difficult to observe its electrochemical properties by cyclic voltammetry. Therefore, we used higher constant axial ligand titrated zinc porphyrins, by using spectrophotometric titration to observe the spectral characteristics of its monomer. Through light permeable optically transparent thin–layerelectrode(OTTLE) the oxidation potentials of monomer were primarily recognized in this study.

並列關鍵字

meso-(1-methylimidazolyl)porphyrin ； meso-(1-methylimidazolyl)zincporphyrin ； electrochemistry ； spectroelectrochemistry ； electrochemically induced hydrogen bonding

參考文獻

參考文獻

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