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  1. Article ; Online: Ultrafast isomerization in acetylene dication after carbon K-shell ionization

    Zheng Li / Ludger Inhester / Chelsea Liekhus-Schmaltz / Basile F. E. Curchod / James W. Snyder / Nikita Medvedev / James Cryan / Timur Osipov / Stefan Pabst / Oriol Vendrell / Phil Bucksbaum / Todd J. Martinez

    Nature Communications, Vol 8, Iss 1, Pp 1-

    2017  Volume 7

    Abstract: The timescale of isomerization in molecules involving ultrafast migration of constituent atoms is difficult to measure. Here the authors report that sub-100 fs isomerization time on acetylene dication in lower electronic states is not possible and point ... ...

    Abstract The timescale of isomerization in molecules involving ultrafast migration of constituent atoms is difficult to measure. Here the authors report that sub-100 fs isomerization time on acetylene dication in lower electronic states is not possible and point to misinterpretation of recent experimental results.
    Keywords Science ; Q
    Language English
    Publishing date 2017-09-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: Ultrafast isomerization in acetylene dication after carbon K-shell ionization

    Zheng Li / Ludger Inhester / Chelsea Liekhus-Schmaltz / Basile F. E. Curchod / James W. Snyder / Nikita Medvedev / James Cryan / Timur Osipov / Stefan Pabst / Oriol Vendrell / Phil Bucksbaum / Todd J. Martinez

    Nature Communications, Vol 8, Iss 1, Pp 1-

    2017  Volume 7

    Abstract: The timescale of isomerization in molecules involving ultrafast migration of constituent atoms is difficult to measure. Here the authors report that sub-100 fs isomerization time on acetylene dication in lower electronic states is not possible and point ... ...

    Abstract The timescale of isomerization in molecules involving ultrafast migration of constituent atoms is difficult to measure. Here the authors report that sub-100 fs isomerization time on acetylene dication in lower electronic states is not possible and point to misinterpretation of recent experimental results.
    Keywords Science ; Q
    Language English
    Publishing date 2017-09-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article ; Online: Observing Femtosecond Fragmentation Using Ultrafast X-ray-Induced Auger Spectra

    Thomas J. A. Wolf / Fabian Holzmeier / Isabella Wagner / Nora Berrah / Christoph Bostedt / John Bozek / Phil Bucksbaum / Ryan Coffee / James Cryan / Joe Farrell / Raimund Feifel / Todd J. Martinez / Brian McFarland / Melanie Mucke / Saikat Nandi / Francesco Tarantelli / Ingo Fischer / Markus Gühr

    Applied Sciences, Vol 7, Iss 7, p

    2017  Volume 681

    Abstract: Molecules often fragment after photoionization in the gas phase. Usually, this process can only be investigated spectroscopically as long as there exists electron correlation between the photofragments. Important parameters, like their kinetic energy ... ...

    Abstract Molecules often fragment after photoionization in the gas phase. Usually, this process can only be investigated spectroscopically as long as there exists electron correlation between the photofragments. Important parameters, like their kinetic energy after separation, cannot be investigated. We are reporting on a femtosecond time-resolved Auger electron spectroscopy study concerning the photofragmentation dynamics of thymine. We observe the appearance of clearly distinguishable signatures from thymine′s neutral photofragment isocyanic acid. Furthermore, we observe a time-dependent shift of its spectrum, which we can attribute to the influence of the charged fragment on the Auger electron. This allows us to map our time-dependent dataset onto the fragmentation coordinate. The time dependence of the shift supports efficient transformation of the excess energy gained from photoionization into kinetic energy of the fragments. Our method is broadly applicable to the investigation of photofragmentation processes.
    Keywords ultrafast dynamics ; Auger electron spectroscopy ; photofragmentation ; photochemistry ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
    Subject code 530
    Language English
    Publishing date 2017-07-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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