Oksana Travnikova, Victor Kimberg, Barbara Cunha de Miranda, Florian Trinter, Markus S. Schöffler, Stéphane Carniato, Tatiana Marchenko, Renaud Guillemin, Iyas Ismail, Gregor Kastirke, Maria Novella Piancastelli, Till Jahnke, Reinhard Dörner, Marc Simon
{"title":"X-ray-Induced Molecular Catapult: Ultrafast Dynamics Driven by Lightweight Linkages","authors":"Oksana Travnikova, Victor Kimberg, Barbara Cunha de Miranda, Florian Trinter, Markus S. Schöffler, Stéphane Carniato, Tatiana Marchenko, Renaud Guillemin, Iyas Ismail, Gregor Kastirke, Maria Novella Piancastelli, Till Jahnke, Reinhard Dörner, Marc Simon","doi":"10.1021/acs.jpclett.4c02511","DOIUrl":null,"url":null,"abstract":"In our work, we demonstrate that X-ray photons can initiate a “molecular catapult” effect, leading to the dissociation of chemical bonds and the formation of heavy fragments within just a few femtoseconds. We reconstruct the momenta of fragments from a three-body dissociation in bromochloromethane using the ion pair average (IPA) reference frame, demonstrating how light atomic groups, such as alkylene and alkanylene, can govern nuclear dynamics during the dissociation process, akin to projectiles released by a catapult. Supported by <i>ab initio</i> calculations, this work highlights the crucial role of low-reduced-mass vibrational modes in driving ultrafast chemical processes.","PeriodicalId":62,"journal":{"name":"The Journal of Physical Chemistry Letters","volume":"57 1","pages":""},"PeriodicalIF":4.8000,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Journal of Physical Chemistry Letters","FirstCategoryId":"1","ListUrlMain":"https://doi.org/10.1021/acs.jpclett.4c02511","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In our work, we demonstrate that X-ray photons can initiate a “molecular catapult” effect, leading to the dissociation of chemical bonds and the formation of heavy fragments within just a few femtoseconds. We reconstruct the momenta of fragments from a three-body dissociation in bromochloromethane using the ion pair average (IPA) reference frame, demonstrating how light atomic groups, such as alkylene and alkanylene, can govern nuclear dynamics during the dissociation process, akin to projectiles released by a catapult. Supported by ab initio calculations, this work highlights the crucial role of low-reduced-mass vibrational modes in driving ultrafast chemical processes.
在我们的工作中，我们证明了 X 射线光子可以引发 "分子弹射 "效应，导致化学键解离，并在短短几个飞秒内形成重碎片。我们利用离子对平均（IPA）参照系重建了溴氯甲烷中三体解离产生的碎片的矩，证明了亚烷基和环烷基等轻原子团如何在解离过程中控制核动力学，类似于弹射器释放的射弹。这项工作得到了 ab initio 计算的支持，凸显了低还原质量振动模式在驱动超快化学过程中的关键作用。
期刊介绍：
The Journal of Physical Chemistry (JPC) Letters is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, chemical physicists, physicists, material scientists, and engineers. An important criterion for acceptance is that the paper reports a significant scientific advance and/or physical insight such that rapid publication is essential. Two issues of JPC Letters are published each month.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
