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題名 | 振動激態誘發之氧原子轉移反應 |
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作者 | 郭玉萍; | 書刊名 | 嘉南學報 |
卷期 | 19 1993.11[民82.11] |
頁次 | 頁1-13 |
分類號 | 348 |
關鍵詞 | 低溫間質隔離法; 霍氏紅外光譜儀; 分解能閘; 乙烯; 二氧化氮; 乙炔; 氬離子雷射; 染料雷射; 釔鋁石榴石雷射; 振動激態; Matrix-isolation method; Fourier transform infrared spectroscopy; Dissociation threshold energy; C[feaf]H[feb2]; NO[feaf]; C[feaf]H[feaf]; Ar ion laser; Dye laser; Nd:YAG laser; Vibrational excitation; |
語文 | 中文(Chinese) |
中文摘要 | 利用低溫間質隔離法和霍氏紅外光譜儀,在低於分解能閘的條件下以長 波長的雷射光源,於波長553-593nm及488-514nm(連續式氬離子雷射激發染料雷 射、脈衝式釔鋁石榴石雷射)範圍製備振動激態的NO��/C�浹��/Ar,以進行氧原子 的轉移反應。除了偵測到反應最終產物環氧乙烷及乙醛外,另有773-1664cm-�薑D 中間產物C�浹�淋因氬間質效應而和NO形成C�浹�淋NO的紅外吸收譜線。但在 C�浹��/NO�砟狨釣t統中則只觀測到包含C=O鏈結的產物。此種以高振動能來誘 導氧原子轉移的反應方法將為幾分子反應提供一新的、更具選擇性的反應途徑。 |
英文摘要 | Oxygen atom transferred from NO�� to C�浹�� was induced by laser excitation between 553593 nm and 488-514 nn) (below the dissociation threshold energy) in solid Ar. Continuous wavedye laser pumped by Ar ion laser and Nd: YAG laser were used as the photolysis sources and thereaction products were monitored by Fourier transform infrared spectroscopy method. The finalproducts (ethylene oxide and acetaldehyde) were probed. Two new absorption peaks appeared at773, 1664 cm- �� were assigned to be the signals of C�浹�淋NO, the product of the reaction intermediate 021140 trapped by NO in Ar matrix. There was no new absorption appeared in NO��/C�浹��/Ar reaction system. Anyway, the laser induced vibrational excited reaction pair would support a controllable, selective reaction pathway for the bimolecular reaction system. |
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