Topical Review: Molecular reaction and solvation visualized by time-resolved X-ray solution scattering: Structure, dynamics, and their solvent dependence

Structural Dynamics
Kyung Hwan KimH Ihee

Abstract

Time-resolved X-ray solution scattering is sensitive to global molecular structure and can track the dynamics of chemical reactions. In this article, we review our recent studies on triiodide ion (I3 (-)) and molecular iodine (I2) in solution. For I3 (-), we elucidated the excitation wavelength-dependent photochemistry and the solvent-dependent ground-state structure. For I2, by combining time-slicing scheme and deconvolution data analysis, we mapped out the progression of geminate recombination and the associated structural change in the solvent cage. With the aid of X-ray free electron lasers, even clearer observation of ultrafast chemical events will be made possible in the near future.

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Citations

Apr 2, 2019·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Philippe Wernet
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May 1, 2021·International Journal of Molecular Sciences·Ki Hyun Nam
Oct 5, 2016·Inorganic Chemistry·Asmus O DohnKlaus B Møller

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Methods Mentioned

BETA
optical spectroscopy
X-ray
static

Software Mentioned

Gaussian09
TRXSS
MINUIT
MOLDY

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