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Photodissociation Pathways of Acetone Upon Excitation Into the 3s Rydberg State: Adiabatic Versus Diabatic Mechanism

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F08%3A00320995" target="_blank" >RIV/61388955:_____/08:00320995 - isvavai.cz</a>

  • Alternative codes found

    RIV/60461373:22340/08:00020645

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Photodissociation Pathways of Acetone Upon Excitation Into the 3s Rydberg State: Adiabatic Versus Diabatic Mechanism

  • Original language description

    Photolysis of acetone upon excitation to the 3s Rydberg excited state has been studied by means of high level ab initio methods. The calculations have been performed on multiconfigurational self consistent field (MCSCF) level with a subsequent addition of dynamical correlation both by perturbation theory (CASPT2) and via a configuration interaction expansion up to double excitations (MR-CISD). In addition to the major photoreaction that is well known Norrish type ?-cleavage, the formation of hydrogen and acetonyl (1-methyloxy or 2-oxopropyl) radical has been discussed. The major question addressed is whether the dynamical processes occur adiabatically on the S2 surface or diabatically, with non-adiabatic transitions taking place in the course of the reactions.

  • Czech name

    Fotodisociační cesty acetonu po excitaci do 3s Rydbergova stavu: Adiabatický versus diabatický mechanismus

  • Czech description

    Fotolýza acetonu po excitaci do 3s Rydbergova stavu byla studována pomocí ab initio metod. Výpočty byly provedeny pomoci multikonfigurační MCSCF úrovně a následně byla přičtena dynamická korelace jak pomocí poruchové teorie (CASPT2), tak pomocí konfigurační interakce (MRCI). Kromě hlavní fotoreakce - dobře známého Norrishova štěpení - byla také diskutována tvorba vodíku a acetonylového radikálu. Hlavní pozornost byla věnována otázce, zda dynamické procesy probíhají adiabaticky na povrchu druhého excitovaného stavu nebo diabaticky, s nediabatickým přechodem v průběhu reakce.

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

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Collection of Czechoslovak Chemical Communications

  • ISSN

    0010-0765

  • e-ISSN

  • Volume of the periodical

    73

  • Issue of the periodical within the volume

    11

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    20

  • Pages from-to

  • UT code for WoS article

    000263121500005

  • EID of the result in the Scopus database