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Collisions of FeO+ with H-2 and He in a Cryogenic Ion Trap

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10336648" target="_blank" >RIV/00216208:11310/16:10336648 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1002/cphc.201600753" target="_blank" >http://dx.doi.org/10.1002/cphc.201600753</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/cphc.201600753" target="_blank" >10.1002/cphc.201600753</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Collisions of FeO+ with H-2 and He in a Cryogenic Ion Trap

  • Original language description

    The nominal temperature range of cryogenic radio-frequency ion traps has recently been extended down to T=2.3K. Whereas in situ He tagging of mass-selected ions embedded in dense helium buffer gas is becoming common for recording IR spectra through photofragmentation of small and large ions, much less activity is devoted to the field of cold chemistry, which in this contribution means the two orders of magnitude extending from 300 to below 3K. The importance of this temperature range for understanding the dynamics of bi- and termolecular reactions is illustrated with new results for the time-honored reaction of FeO+ with H-2 obtained with the cryogenic ion trap ISORI in Prague. The rate coefficient for forming Fe++H2O increases steeply with decreasing temperature. In addition more product channels open up, such as the stabilized reaction-intermediate complexes H2FeO+ and He-n-FeO+ formed by ternary association with He. For the FeOH++H channel only a minor signal is observed. The rate coefficients provide deep insight into lifetimes, bottlenecks, and barriers impeding almost completely the exothermic, but spin-forbidden, reaction at room temperature. For some of the He-tagged ions, IR predissociation spectra are recorded. A breakthrough is obtaining the first spectrum of [(H-2)FeO](+), synthesized and tagged in situ with He. These results pave the way to study the structures of reaction intermediates stabilized in the gas phase by means of collisions with helium.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Chemphyschem : a European journal of chemical physics and physical chemistry

  • ISSN

    1439-4235

  • e-ISSN

  • Volume of the periodical

    17

  • Issue of the periodical within the volume

    22

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    17

  • Pages from-to

    3723-3739

  • UT code for WoS article

    000388625000018

  • EID of the result in the Scopus database

    2-s2.0-84990848510