Velocity map imaging of HBr photodissociation in large rare gas clusters

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F11%3A00359045" target="_blank" >RIV/61388955:_____/11:00359045 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.3578610" target="_blank" >http://dx.doi.org/10.1063/1.3578610</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.3578610" target="_blank" >10.1063/1.3578610</a>

Result language
angličtina
Original language name
Velocity map imaging of HBr photodissociation in large rare gas clusters
Original language description
We have implemented the velocity map imaging technique to study clustering in the pulsed supersonic expansions of hydrogen bromide in helium, argon, and xenon. The expansions are characterized by direct imaging of the beam velocity distributions. We haveinvestigated the cluster generation by means of UV photodissociation and photoionization of HBr molecules. Two distinct features appear in the hydrogen atom photofragment images in the clustering regime: (i) photofragments with near zero kinetic energies and (ii) ?hot photofragments originating from vibrationally excited HBr molecules. The origin of both features is attributed to the fragment caging by the cluster. We discuss the nature of the formed clusters based on the change of the photofragment images with the expansion parameters and on the photoionization mass spectra and conclude that single HBr molecule encompassed with rare gas ?snowball is consistent with the experimental observations.
Czech name
—
Czech description
—

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
—

Project
<a href="/en/project/GA203%2F09%2F0422" target="_blank" >GA203/09/0422: Study of photochemical processes in free nanoparticles of atmospheric and biophysical relevance</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)