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题名: Simultaneously Probing Two Ultrafast Condensed-Phase Molecular Symmetry Breaking Events by Two-Dimensional Infrared Spectroscopy
作者: Yang, Fan4;  Yu, Pengyun4, 5;  Zhao, Juan4;  Wang, Jianping4
关键词: density functional calculations ;  IR spectroscopy ;  symmetry breaking ;  time-resolved spectroscopy ;  ultrafast spectroscopy
刊名: CHEMPHYSCHEM
发表日期: 2013-08-05
DOI: 10.1002/cphc.201300094
卷: 14, 期:11, 页:2497-2504
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: In condensed phases, a highly symmetric gas-phase molecule lowers its symmetry under perturbation of the solvent, which is vital to a variety of structural chemistry related processes. However, the dynamical aspects of solvent-mediated symmetry- breaking events remain largely unknown. Herein, direct evidence for two types of solvent-mediated symmetry-breaking events that coexist on the picosecond timescale in a highly symmetric anion, namely, hexacyanocobaltate, is presented: 1) an equilibrium symmetry-breaking event in which a solvent-bound species having lowered symmetry undergoes a population exchange reaction with the symmetry-retaining species; 2) a dynamic symmetry-breaking event that is composed of many dynamic population-exchange reactions under fluctuating solvent interactions. Ultrafast two-dimensional infrared spectroscopy is used to simultaneously observe and dynamically characterize these two events. This work opens a new window into molecular symmetry and structural dynamics under equilibrium and non-equilibrium conditions.
关键词[WOS]: HYDROGEN-BOND ;  CHEMICAL-EXCHANGE ;  IR SPECTROSCOPY ;  LIQUID H2O ;  REAL-TIME ;  SOLVENT ;  DYNAMICS ;  SOLVATION ;  SPECTRA ;  HYDRATION
语种: 英语
WOS记录号: WOS:000322339100021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137950
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Beijing Natl Lab Mol Sci, Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Beijing Natl Lab Mol Sci, Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing, Peoples R China
4.Chinese Acad Sci, Beijing Natl Lab Mol Sci, State Key Lab Mol React Dynam, Inst Chem, Beijing 100190, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Yang, Fan,Yu, Pengyun,Zhao, Juan,et al. Simultaneously Probing Two Ultrafast Condensed-Phase Molecular Symmetry Breaking Events by Two-Dimensional Infrared Spectroscopy[J]. CHEMPHYSCHEM,2013,14(11):2497-2504.
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