Electronic Spectra of LiNH3 and YbNH3

Details Electronic Spectra of LiNH3 and YbNH3 Electronic Spectra of LiNH3 and YbNH3

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mss..confetg08b&link_type=abstract

"International Symposium On Molecular Spectroscopy, 65th Meeting, Held 21-25 June, 2010 at Ohio State University. http://molspec

Computer Science

Electronic (Uv/Vis/Nir)

Scientific paper

Alkalis and several rare earth elements dissolve in liquid ammonia and yield solvated electrons. Despite efforts to understand the electronic structure of these solutions, they are still poorly understood. We are trying to tackle this issue by providing electronic structure information on basic entities that might be found in such solutions, using isolated metal-ammonia clusters in the gas phase as model systems. Here we report on two of the simplest clusters, LiNH3 and YbNH3, and present their electronic spectra for the first time. These spectra have been recorded via two-colour REMPI and/or photodepletion spectroscopy. The spectrum of LiNH3, with ~A - ~X origin near 11,500 cm-1, is quite complex, with both vibrational structure and evidence of Btilde - ~X excitation nearby. A possible assignment will be presented. YbNH3 has a simpler spectrum with origin near to 14,000 cm-1. Nevertheless, as will be shown, the assignment for this cluster is also non-trivial.

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