Heidelberg 1999 – wissenschaftliches Programm
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MO: Molekülphysik
MO 8: Poster II: Spektroskopie
MO 8.1: Poster
Dienstag, 16. März 1999, 16:00–19:00, PA
Tunable Far Infrared Spectroscopy of xKrH+ and xKrD+ (x=82,82,86) — •H. Linnartz1, L.R. Zink2, K.M. Evenson2, H. Odashima3, F. Matsushima3, A. Kozato3, S. Tsunekawa3, and K. Takagi3 — 1Institute for Physical Chemistry, University of Basel, Klingelbergstrasse 80, CH4056 Basel — 2NIST, 325 Broadway, Boulder, CO 80303 — 3Dept. of Physics, Toyama University, Gofuku 3190, Toyama 930-8555
Pure rotational absorption spectra of the krypton hydride ion in its ground electronic and vibrational state have been measured in the 0.5 - 3.5 THz range with tunable far-infrared spectrometers. The ions are generated in LN2 cooled hollow cathode and magnetically extended negative glow discharges. The accurate frequency measurements determine the rotational constants B, D, and H, and yield transition frequencies accurate to 40 kHz (1σ). By combining all results a mass-independent Dunham analysis has been performed, yielding accurate information on the Born-Oppenheimer breakdown parameters.