Physics
Scientific paper
Jun 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mss..confefb03a&link_type=abstract
"International Symposium On Molecular Spectroscopy, 65th Meeting, Held 21-25 June, 2010 at Ohio State University. http://molspec
Physics
Matrix/Condensed Phase
Scientific paper
The in situ photochemistry of dopant molecules isolated in solid parahydrogen (pH_2) typically differs from analogous studies in rare gas crystals for two main reasons: (1) solid pH_2 has a negligible cage effect so that photodissociation of a precursor molecule can lead efficiently to well-separated fragments, and (2) radical fragments can potentially react with the pH_2 matrix. Our group is currently studying the 193 nm photochemistry of a number of precursor molecules isolated in solid pH_2 via high-resolution FTIR spectroscopy in hopes of identifying trapped atomic species. Currently we are revisiting the photochemistry of NO in solid pH_2 that has previously been investigated by Momose and co-workers. The 193 nm photodynamics of NO in rare gas matrices has also been extensively studied. The studies by Momose showed that NO is photolabile at 193 nm and that the product N and O atoms react to form NH_3 and H_2O, respectively. Preliminary experiments in this laboratory show evidence for the production of the imidogen (NH) radical as well, and the most recent results and analysis will be presented.
M. Fushitani and T. Momose, Low Temp. Phys. 29, 740 (2003).
J. Eloranta, K. Vaskonen, H. Hakkanen, T. Kiljunen, and H. Kunttu, J. Chem. Phys. 109, 7784 (1998).
Anderson David T.
Kettwich Sharon C.
Paulson Leif O.
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