Ultrafast structural dynamics of photo-reactions observed by time-resolved x-ray cross-correlation analysis

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We applied angular X-ray Cross-Correlation analysis (XCCA) to scattering images from a femtosecond resolution X-ray free-electron laser pump-probe experiment with solvated PtPOP {[Pt2(P2O5H2)4]4–} metal complex molecules. The molecules were pumped with linear polarized laser pulses creating an excited state population with a preferred orientational (alignment) direction. Two time scales of 1.9 ± 1.5 ps and 46 ± 10 ps were revealed by angular XCCA associated with structural changes and rotational dephasing of the solvent molecules, respectively. These results illustrate the potential of XCCA to reveal hidden structural information in the analysis of time-resolved x-ray scattering data from molecules in solution.
Original languageEnglish
Article number024301
JournalStructural Dynamics
Issue number2
Number of pages9
Publication statusPublished - 2019
CitationsWeb of Science® Times Cited: No match on DOI

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