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  Tracking reaction dynamics in solution by pump–probe X-ray absorption spectroscopy and X-ray liquidography (solution scattering)

Kim, J., Kim, K. H., Oang, K. Y., Lee, J. H., Hong, K., Cho, H., et al. (2016). Tracking reaction dynamics in solution by pump–probe X-ray absorption spectroscopy and X-ray liquidography (solution scattering). Chemical Communications, 52(19), 3734-3749. doi:10.1039/C5CC08949B.

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http://dx.doi.org/10.1039/C5CC08949B (Publisher version)


Kim, Jeongho1, Author
Kim, Kyung Hwan2, 3, Author
Oang, Key Young2, 3, Author
Lee, Jae Hyuk4, Author
Hong, Kiryong5, Author
Cho, Hana4, 5, 6, Author
Huse, Nils7, 8, Author              
Schoenlein, Robert W.4, Author
Kim, Tae Kyu5, Author
Ihee, Hyotcherl2, 3, Author
1Department of Chemistry, Inha University, Incheon 402-751, Republic of Korea, ou_persistent22              
2Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon, Republic of Korea, ou_persistent22              
3Department of Chemistry, KAIST, Daejeon 305-701, Republic of Korea, ou_persistent22              
4Ultrafast X-ray Science Lab, Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, USA, ou_persistent22              
5Department of Chemistry and Chemical Institute for Functional Materials, Pusan National University, Busan 609-735, Republic of Korea, ou_persistent22              
6Center for Inorganic Analysis, Division of Metrology for Quality of Life, Korea Research Institute of Standard and Science, Daejeon 305-340, Republic of Korea, ou_persistent22              
7Ultrafast Molecular Dynamics, Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938289              
8University of Hamburg & Center for Free Electron Laser Science, 22607 Hamburg, Germany, ou_persistent22              


Free keywords: -
 Abstract: Characterization of transient molecular structures formed during chemical and biological processes is essential for understanding their mechanisms and functions. Over the last decade, time-resolved X-ray liquidography (TRXL) and time-resolved X-ray absorption spectroscopy (TRXAS) have emerged as powerful techniques for molecular and electronic structural analysis of photoinduced reactions in the solution phase. Both techniques make use of a pump–probe scheme that consists of (1) an optical pump pulse to initiate a photoinduced process and (2) an X-ray probe pulse to monitor changes in the molecular structure as a function of time delay between pump and probe pulses. TRXL is sensitive to changes in the global molecular structure and therefore can be used to elucidate structural changes of reacting solute molecules as well as the collective response of solvent molecules. On the other hand, TRXAS can be used to probe changes in both local geometrical and electronic structures of specific X-ray-absorbing atoms due to the element-specific nature of core-level transitions. These techniques are complementary to each other and a combination of the two methods will enhance the capability of accurately obtaining structural changes induced by photoexcitation. Here we review the principles of TRXL and TRXAS and present recent application examples of the two methods for studying chemical and biological processes in solution. Furthermore, we briefly discuss the prospect of using X-ray free electron lasers for the two techniques, which will allow us to keep track of structural dynamics on femtosecond time scales in various solution-phase molecular reactions.


Language(s): eng - English
 Dates: 2015-10-282016-01-122016-01-192016-03-07
 Publication Status: Published in print
 Pages: 16
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/C5CC08949B
 Degree: -



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Title: Chemical Communications
  Other : Chem. Commun.
Source Genre: Journal
Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 52 (19) Sequence Number: - Start / End Page: 3734 - 3749 Identifier: ISSN: 1359-7345
CoNE: https://pure.mpg.de/cone/journals/resource/954928495413