Bonn 2000 – wissenschaftliches Programm
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MO: Molekülphysik
MO 2: Spektroskopie I
MO 2.3: Vortrag
Montag, 3. April 2000, 17:00–17:15, HS VIII
Spectroscopic and theoretical characterization of linear centro-symmetric N2-H+-N2 and N2-Ar+-N2 — •Harold Linnartz1, Dorin Verdes1, John P. Maier1, Peter Botschwina2, Rainer Oswald2, Pavel Rosmus3, and Peter Knowles4 — 1Institute for Physical Chemistry, Klingelbergstrasse 80, CH-4056 Basel — 2Institut für Physikalische Chemie, Tammannstrasse 6, D-37077 Göttingen — 3Theoretical Chemistry Group, Marne-la-Vallée, F-77454 Champs sur Marne — 4School of Chemistry, University of Birmingham, B15 2TT Birmingham
The first high resolution infrared spectra of the ionic complexes N2-H+-N2 (and deuterated derivative N2-D+-N2+ [1]) and N2-Ar+-N2 are reported. The spectra are obtained in direct absorption in a supersonic slit nozzle plasma, employing electron impact ionization and production modulation. The observed transitions are assigned to the anti-symmetric NN stretching vibration. The spectra are consistent with a linear centro-symmetric structure. The assignment is supported by ab initio calculations that provide additional information currently not accessible to the experiment.
[1] J. Chem. Phys. 111, 8400 (1999)