| 研究生: |
陳律安 Chen, Lu-An |
|---|---|
| 論文名稱: |
藉由雷射瞬間光解對半縮醛自由基之研究 A Study of Hemiacetal Radical by Laser Flash Photolysis |
| 指導教授: |
宋光生
Sung, Kuangsen |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 化學系 Department of Chemistry |
| 論文出版年: | 2009 |
| 畢業學年度: | 97 |
| 語文別: | 中文 |
| 論文頁數: | 49 |
| 中文關鍵詞: | 雷射瞬間光解 、過氧縮醛 、縮醛自由基 |
| 外文關鍵詞: | hemiacetal radical, peroxyacetal, laser flash photolysis |
| 相關次數: | 點閱:44 下載:1 |
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藉由雷射瞬間光解首次觀察到n-Butyl 1-(tert-butyl peroxy) benzyl ether (過氧縮醛)光解後所產生的縮醛自由基。縮醛自由基在66.7%乙氰水溶液中生命週期為158奈秒。利用triphenylphosphine淬熄的方法來鑑定觀察到的縮醛自由基。量子產率與螢光量子產率分別為0.027與0.01。
This thesis reports the first direct observation of a hemiacetal radical which is generated by the laser flash photolysis of “n-Butyl 1-(tert-butyl peroxy) benzyl ether” (peroxyacetal). Life time of hemiacetal radical in deoxygenated 66.7% acetonitrile aqueous solution is 158ns. Hemiacetal radical can be confirmed by triphenyl- phosphine quenching. The quantum yield and fluorescence quantum yield are 0.027 and 0.01 respectively.
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