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

Peter Vester; Ivan A. Zaluzhnyy; Ruslan P. Kurta; Klaus Braagaard Møller; Elisa Biasin; Kristoffer Haldrup; Martin Meedom Nielsen; Ivan A. Vartanyants

doi:10.1063/1.5086374

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

Peter Vester, Ivan A. Zaluzhnyy, Ruslan P. Kurta, Klaus Braagaard Møller, Elisa Biasin, Kristoffer Haldrup, Martin Meedom Nielsen^*, Ivan A. Vartanyants

^*Corresponding author for this work

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Abstract

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 language	English
Article number	024301
Journal	Structural Dynamics
Volume	6
Issue number	2
Number of pages	9
ISSN	2329-7778
DOIs	https://doi.org/10.1063/1.5086374
Publication status	Published - 2019

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

abstract = "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.",

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doi = "10.1063/1.5086374",

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T1 - Ultrafast structural dynamics of photo-reactions observed by time-resolved x-ray cross-correlation analysis

AU - Vester, Peter

AU - Zaluzhnyy, Ivan A.

AU - Kurta, Ruslan P.

AU - Møller, Klaus Braagaard

AU - Biasin, Elisa

AU - Haldrup, Kristoffer

AU - Nielsen, Martin Meedom

AU - Vartanyants, Ivan A.

PY - 2019

Y1 - 2019

N2 - 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.

AB - 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.

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DO - 10.1063/1.5086374

M3 - Journal article

C2 - 30915388

SN - 2329-7778

VL - 6

JO - Structural Dynamics

JF - Structural Dynamics

IS - 2

M1 - 024301

ER -

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

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