Ion-pair dissociation of water molecule in vacuum ultraviolet photoabsorption as investigated by momentum imaging of fragment negative ions

IF 2.8 3区 化学 Q3 CHEMISTRY, PHYSICAL Chemical Physics Letters Pub Date : 2025-02-14 DOI:10.1016/j.cplett.2025.141947
Takeshi Odagiri , Haruka Kamata , Akiko Oda , Asahi Takamura , Hayato Imamura , Isao H. Suzuki
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Abstract

A momentum imaging spectrometer for the detection of negative ions has been developed on investigation with a synchrotron light source for clarification of the dynamics of ion-pair photodissociation in the vacuum ultraviolet energy range. This method, combined with utilization of pulse character of synchrotron has been examined for the study of ion-pair photodissociation of H2O. It has been demonstrated that the present methodology provides comprehensive insights into the dynamics of ion-pair photodissociation, particularly in polyatomic molecules.

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为了弄清真空紫外线能量范围内离子对光解离的动力学,利用同步辐射光源开发了一种用于检测负离子的动量成像光谱仪。这种方法与同步加速器脉冲特性的结合被用于研究 H2O 的离子对光解离。研究结果表明,目前的方法可以全面深入地了解离子对光解离的动力学,特别是多原子分子中的离子对光解离。
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来源期刊
Chemical Physics Letters
Chemical Physics Letters 化学-物理:原子、分子和化学物理
CiteScore
5.70
自引率
3.60%
发文量
798
审稿时长
33 days
期刊介绍: Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.
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Editorial Board Contents continued Graphical abstract TOC Graphical abstract TOC Accurate structures and rotational constants of nitroaromatic explosives and their taggants at DFT cost by Pisa composite schemes and vibrational perturbation theory
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