Photoinduced Abstraction Reactions within NO Dimers on Ag(111)

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• 作者：Ki Hyun Kim ; Kazuo Watanabe ; Dietrich Menzel ; Hans-Joachim Freund
• 刊名：Journal of the American Chemical Society
• 出版年：2009
• 出版时间：February 11, 2009
• 年：2009
• 卷：131
• 期：5
• 页码：1660-1661
• 全文大小：172K
• 年卷期：v.131,no.5(February 11, 2009)
• ISSN：1520-5126

文摘

Nanosecond laser-induced photoreactions of (NO)₂ adsorbed on Ag(111) at 75 K are investigated by mass-selected photoinduced desorption (PID) and time-of-flight (TOF) measurements. It has been found that N₂ as well as N₂O is formed by a photoinduced abstraction reaction within a single (NO)₂. The photoproduct N₂ desorbs with a very high translational temperature (5700 K) as a result of strong repulsion by the surface upon its formation. The Ag surface shortens the N−N bond of (NO)₂ to enable N₂O and N₂ formation.