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首页> 外文期刊>Journal of Experimental and Theoretical Physics >Multiphoton fragmentation and ionization of CF2HCl molecules and clusters by UV radiation
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Multiphoton fragmentation and ionization of CF2HCl molecules and clusters by UV radiation

机译：CF2HCl分子和团簇的多光子断裂和电离作用

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摘要

The results of experimental studies of multiphoton ionization of CF2HCl molecules and clusters by UV laser radiation in the wavelength range 217-236 nm are reported. In the case of molecules, the main reaction products are CF2H+ and CF+ ions as well as atomic chlorine. It is found that the spectra of the products of ionization of free molecules and molecules condensed into clusters differ qualitatively: multiphoton ionization of clusters does not yield CF2H+ ions. The dependences of the ion yield on the intensity of laser radiation and its wavelength are measured. The effect of a constant electric field and the radiation spectral width on the multiphoton ionization process is demonstrated. The shape of the velocity distributions is determined for a number of products. A strong anisotropy is detected in the reaction of formation of CF2H+ ions. Possible mechanisms for these processes are discussed.
机译：报道了在217-236 nm波长范围内通过UV激光辐射对CF2HCl分子和簇进行多光子电离的实验研究结果。就分子而言，主要反应产物是CF2H +和CF +离子以及原子氯。发现游离分子的电离产物和缩合成簇的分子的光谱在质量上存在差异：簇的多光子电离不会产生CF2H +离子。测量了离子产率对激光辐射强度及其波长的依赖性。证明了恒定电场和辐射光谱宽度对多光子电离过程的影响。确定许多产品的速度分布形状。在CF2H +离子形成的反应中检测到强各向异性。讨论了这些过程的可能机制。

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