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

被引：11
|
作者：
Vester, Peter [1 ]
Zaluzhnyy, Ivan A. [2 ,3 ,7 ]
Kurta, Ruslan P. [4 ]
Moller, Klaus B. [5 ]
Biasin, Elisa [1 ,6 ]
Haldrup, Kristoffer [1 ]
Nielsen, Martin Meedom [1 ]
Vartanyants, Ivan A. [2 ,3 ]
机构：
[1] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark
[2] Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany
[3] Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Kashirskoe Shosse 31, Moscow 115409, Russia
[4] European XFEL, Holzkoppel 4, D-22869 Schenefeld, Germany
[5] Tech Univ Denmark, Dept Chem, DK-2800 Lyngby, Denmark
[6] SLAC Natl Accelerator Lab, PULSE Inst, Menlo Pk, CA 94025 USA
[7] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
来源：
STRUCTURAL DYNAMICS-US | 2019年 / 6卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
EXCITED-STATES; SCATTERING; TRANSITION; ANISOTROPY;
D O I：
10.1063/1.5086374
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 {[Pt-2(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. (C) 2019 Author(s).
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页数：8
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