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Photodissociation of HBr molecules in clusters: from rare gas clusters to water nanoparticles

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F07%3A00092666" target="_blank" >RIV/61388955:_____/07:00092666 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Photodissociation of HBr molecules in clusters: from rare gas clusters to water nanoparticles

  • Original language description

    Experiments on the photodissociation of molecules in different cluster environments are described and illustrated based on the example of HBr molecules photolysed at 193 nm in various clusters. The photolysis of HBr molecules incorporated in the hydrogenbonded network of (HBr)(n) clusters exhibits pronounced direct exits of the H-fragments. On the other hand, the H-fragments from HBr molecules bound by much weaker van der Waals forces at the surface of large Ar-n clusters are trapped efficiently by thecluster cage. These observations are mainly explained by the geometry of the molecule bound to the cluster. The HBr molecules deposited on the large (H2O) n clusters behave quite differently. They undergo acid dissociation and the resulting zwitterionicform is excited by the radiation giving rise to the generation of the hydronium H3O molecule and its subsequent dissociation.

  • Czech name

    Fotodisociace HBr molekul v klastrech: od klastrů vzácných plynů k nanočásticím vody

  • Czech description

    V tomto článku jsou popsány experimenty s fotodisociací molekul HBr v prostředí různých klastrů. Fotolýza HBr v klastrech (HBr)n vázaných vodíkovými můstky vykazuje značný únik H-fragmentů. Naproti tomu H-fragmenty fotolýzy HBr vázané slabými vand der Waalsovskými interakcemi na Ar klastrech jsou efektivně zachyceny. Tyto efekty jsou vysvětlovány zejména geometrickým uspořádáním klastrů. HBr na velkých vodních klastrech vykazuje zcela odlišné chování. Dochází zde k acidické disociaci a vzniklá zwitterionická struktura je excitována a vznikne molekula hydronia H3O, která následně disociuje.

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

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2007

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Physica Scripta

  • ISSN

    0031-8949

  • e-ISSN

  • Volume of the periodical

    76

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    SE - SWEDEN

  • Number of pages

    6

  • Pages from-to

    "C73"-"C78"

  • UT code for WoS article

  • EID of the result in the Scopus database