Inner-Shell-Ionization-Induced Femtosecond Structural Dynamics of Water Molecules Imaged at an X-Ray Free-Electron Laser

被引：35

作者：

Jahnke, T. ^{[1
]}

Guillemin, R. ^{[2
]}

Inhester, L. ^{[3
]}

Son, S-K ^{[3
]}

Kastirke, G. ^{[4
]}

Ilchen, M. ^{[1
,5
,6
]}

Rist, J. ^{[4
]}

Trabert, D. ^{[4
]}

Melzer, N. ^{[4
]}

Anders, N. ^{[4
]}

Mazza, T. ^{[1
]}

Boll, R. ^{[1
]}

De Fanis, A. ^{[1
]}

Music, V ^{[1
,5
,6
]}

Weber, Th ^{[7
]}

Weller, M. ^{[4
]}

Eckart, S. ^{[4
]}

Fehre, K. ^{[4
]}

Grundmann, S. ^{[4
]}

Hartung, A. ^{[4
]}

Hofmann, M. ^{[4
]}

Janke, C. ^{[4
]}

Kircher, M. ^{[4
]}

Nalin, G. ^{[4
]}

Pier, A. ^{[4
]}

Siebert, J. ^{[4
]}

Strenger, N. ^{[4
]}

Vela-Perez, I ^{[4
]}

Baumann, T. M. ^{[1
]}

Grychtol, P. ^{[1
]}

Montano, J. ^{[1
]}

Ovcharenko, Y. ^{[1
]}

Rennhack, N. ^{[1
]}

Rivas, D. E. ^{[1
]}

Wagner, R. ^{[1
]}

Ziolkowski, P. ^{[1
]}

Schmidt, P. ^{[1
,5
,6
]}

Marchenko, T. ^{[2
]}

Travnikova, O. ^{[2
]}

Journel, L. ^{[2
]}

Ismail, I. ^{[2
]}

Kukk, E. ^{[8
]}

Niskanen, J. ^{[8
]}

Trinter, F. ^{[9
,10
]}

Vozzi, C. ^{[11
]}

Devetta, M. ^{[11
]}

Stagira, S. ^{[12
]}

Gisselbrecht, M. ^{[13
]}

Jaeger, A. L. ^{[14
]}

Li, X. ^{[15
]}

机构：

[1] European XFEL, D-22869 Schenefeld, Germany

[2] Sorbonne Univ, CNRS, LCPMR, F-75005 Paris, France

[3] DESY, Ctr Free Electron Laser Sci CFEL, D-22607 Hamburg, Germany

[4] Goethe Univ, Inst Kernphys, D-60438 Frankfurt, Germany

[5] Univ Kassel, Inst Phys, D-34132 Kassel, Germany

[6] Univ Kassel, CINSaT, D-34132 Kassel, Germany

[7] Lawrence Berkeley Natl Lab, Chem Sci, Berkeley, CA 94720 USA

[8] Univ Turku, Dept Phys & Astron, FI-20014 Turku, Finland

[9] DESY, FS PETRA S, D-22607 Hamburg, Germany

[10] Fritz Haber Inst Max Planck Gesell, Mol Phys, D-14195 Berlin, Germany

[11] CNR, IFN Ist Foton & Nanotecnol, I-20133 Milan, Italy

[12] Politecn Milan, Phys Dept, Milan, Italy

[13] Lund Univ, Dept Phys, SE-22100 Lund, Sweden

[14] Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany

[15] Kansas State Univ, Dept Phys, JR Macdonald Lab, Manhattan, KS 66506 USA

[16] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

[17] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden

[18] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[19] Univ Hamburg, Dept Phys, D-22607 Hamburg, Germany

[20] Uppsala Univ, Dept Phys & Astron, SE-75120 Uppsala, Sweden

来源：

PHYSICAL REVIEW X | 2021年 / 11卷 / 04期

关键词：

LIQUID WATER; PHOTOFRAGMENTATION; SPECTROSCOPY; RADIOLYSIS; SPECTRUM; SURFACE; ORIGIN; ION;

D O I：

10.1103/PhysRevX.11.041044

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ultrafast structural dynamics of water following inner-shell ionization is a crucial issue in high-energy radiation chemistry. We have exposed isolated water molecules to a short x-ray pulse from a free-electron laser and detected momenta of all produced ions in coincidence. By combining experimental results and theoretical modeling, we can image dissociation dynamics of individual molecules in unprecedented detail. We reveal significant molecular structural dynamics in H2O2+, such as asymmetric deformation and bond-angle opening, leading to two-body or three-body fragmentation on a timescale of a few femtoseconds. We thus reconstruct several snapshots of structural dynamics at different time intervals, which highlight dynamical patterns that are relevant as initiating steps of subsequent radiation-damage processes.

引用

页数：22

共 32 条

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