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題名 | 共軛雙氫鍵操控之質子轉移及應用=The Conjugated Dual Hydrogen Bond Mediating Proton-Transfer Reaction, its Application |
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作者 | 周必泰; 衛靖燕; | 書刊名 | 化學 |
卷期 | 55:4 1997.12[民86.12] |
頁次 | 頁105-118 |
專輯 | 溶液態光物理化學 |
分類號 | 346.01 |
關鍵詞 | 共軛雙氫鍵; 質子轉移; 氫鍵複合體; 分子開關; Conjugated dual hydrogen bond; Proton transfer; Hydrogen-bonded complex; Molecular switch; |
語文 | 中文(Chinese) |
中文摘要 | 共軏雙氫鍵的強度操控質子轉移機制這兩年來已經被深入而廣泛的研究。我們發 現某些生化相關分子和一些帶有質子供給及接受的雙官能基客體形成雙氫鍵結後,由於雙氫 鍵是處於共軏的狀態使這些分子經由氫鍵誘發電子共振效應而更穩定下來,產生非常穩定之 共軛雙氫鍵複合體。這共軛雙氫鍵複合體甚至能操控基態質子轉移之平衡反應。經由客體做 橋樑,質子轉移可以在激發態或基態快速的進行。我們相信未來共軛雙氫鍵甚或多重共軛氫 鍵的研究將提供給基因突變一個非常重要訊息。共軛雙氫鍵也同時在溶劑效應以及分子開關 的應用上扮演著一個非常重要的角色。 |
英文摘要 | The mechanism of proton-transfer reaction mediated by the conjugated dual hydrogen bonding formation has been extensively studied. Several bio-related molecules can be self-associatied and/or form unusually stable complexes with guest molecules through through the CDHB formation, which induces an additional stabilization energy through the π -electron resonant effect. Therefore, in the ground state, the proton transfer equilibrium can be fine tuned based on the CDHB strength. While in the excited state, the CDHB effect dynamically assists the proton-transfer reaction through a proton-relay system. |
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