: |
: |
|---|
ALIREZA SHAYESTEH, SHANSHAN YU, PETER F. BERNATH, Department of Chemistry, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
Gaseous HgH2 and HgD2 were observed for the first time in a discharge of mercury vapor and molecular hydrogen at room temperature. The emission spectra were recorded in the 1200-2200 cm-1 spectral region using a Fourier transform spectrometer with 0.01 cm-1 resolution. The antisymmetric stretching fundamental bands of HgH2 and HgD2 were detected at 1912.8 cm-1 and 1375.8 cm-1, respectively, and lines from the six naturally abundant isotopes of mercury were completely resolved. The 002 - 001 and 011 - 010 hot bands were also analyzed for both molecules. Unlike CdH2 and ZnH2, no perturbation was observed in the HgH2 bands. The molecular constants and their isotopic ratios will be presented.