首页 | 本学科首页   官方微博 | 高级检索  
     检索      

水分子F态超快动力学:时间分辨光电子能谱研究
引用本文:杨栋元,闵彦钧,陈 震,贺志刚,陈志超,袁开军,戴东旭,吴国荣,杨学明.水分子F态超快动力学:时间分辨光电子能谱研究[J].化学物理学报,2019,32(1):53-58.
作者姓名:杨栋元  闵彦钧  陈 震  贺志刚  陈志超  袁开军  戴东旭  吴国荣  杨学明
作者单位:中国科学院大连化学物理研究所分子反应动力学国家重点实验室;中国科学院大学
摘    要:本文利用双光子激发和时间分辨的光电子成像技术研究了水分子■态的超快动力学.这是首次对水分子■态进行时间分辨的实验研究.水(重水)分子■和■态的寿命分别为1.0±0.3(1.9±0.4)和10±3(30±10)皮秒.我们提出■态主要通过非绝热耦合内转换到■态,而■态通过科里奥利相互作用耦合到■态.

关 键 词:光电子能谱,泵浦/探测,飞秒时间分辨
收稿时间:2018/11/4 0:00:00

Ultrafast Dynamics of Water Molecules Excited to Electronic F States: A Time-Resolved Photoelectron Spectroscopy Study
Dong-yuan Yang,Yan-jun Min,Zhen Chen,Zhi-gang He,Zhi-chao Chen,Kai-jun Yuan,Dong-xu Dai,Guo-rong Wu and Xue-ming Yang.Ultrafast Dynamics of Water Molecules Excited to Electronic F States: A Time-Resolved Photoelectron Spectroscopy Study[J].Chinese Journal of Chemical Physics,2019,32(1):53-58.
Authors:Dong-yuan Yang  Yan-jun Min  Zhen Chen  Zhi-gang He  Zhi-chao Chen  Kai-jun Yuan  Dong-xu Dai  Guo-rong Wu and Xue-ming Yang
Abstract:The ultrafast dynamics of water molecules excited to the two F states is studied by combining two-photon excitation and time-resolved photoelectron imaging techniques. The lifetimes of the F1A1 and F1B1 states of H2O (D2O) were derived to be 1.0±0.3 (1.9±0.4) and 10±3 (30±10) ps, respectively. We propose that the F1A1 state mainly decays through the D state, due to the nonadiabatic coupling between them, while the F1B1 state decays through the F1A1 state via Coriolis interaction.
Keywords:Photoelectron spectrum  Pump/probe  Femtosecond time-resolved sprctra
本文献已被 CNKI 等数据库收录!
点击此处可从《化学物理学报》浏览原始摘要信息
点击此处可从《化学物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号