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首页> 外文期刊>Chemical Physics Letters >ULTRAFAST NON-RESONANT MULTIPHOTON PREPARATION OF ION-MOLECULE REACTIONS WITHIN CLUSTERS
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ULTRAFAST NON-RESONANT MULTIPHOTON PREPARATION OF ION-MOLECULE REACTIONS WITHIN CLUSTERS

机译:团簇内离子分子的超快非共振多光子制备

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摘要

Using two-photon non-resonant excitation with a picosecond tunable laser, ion-molecule reactions have been initiated in the ground state of ionic clusters. Two examples are treated here of nucleophilic attack of ammonia on para-fluorochlorobenzene and meta-chloroiodobenzene cations. The reaction products are easily observed and identified in the first state without further fragmentation. The second system has been chosen for its lack of a stable relay state for the resonant ionisation. These experiments demonstrate the potential of pico (femto) tunable light sources in preparing reactions of ionic states by two-photon (or three-photon) non-resonant excitation. This method should be rather general even in the absence of a stable intermediate state. [References: 18]
机译:使用皮秒可调激光器的双光子非共振激发,已经在离子簇的基态下引发了离子分子反应。这里处理氨对对氟氯苯和间氯碘苯阳离子的亲核攻击的两个例子。在第一状态下容易观察和鉴定反应产物,而无需进一步破碎。选择第二种系统是因为它缺少用于共振电离的稳定中继状态。这些实验证明了微微(毫微微)可调光源在通过两光子(或三光子)非共振激发制备离子态反应中的潜力。即使没有稳定的中间状态,此方法也应该相当通用。 [参考:18]

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