15min:

A. SHAYESTEH, D. R. T. APPADOO, I. GORDON AND P. F. BERNATH, Department of Chemistry, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.

We have recorded the vibration-rotation spectrum of gaseous ZnH and ZnH₂ in emission using a furnace-discharge source. The molecules were generated by flowing a few torr of an Ar/H₂ gas mixture over a sample of zinc metal in a furnace at 470^oC and applying a 3 kV / 333 mA discharge. The observed spectrum contained the fundamental and first hot band of ⁶⁴ZnH, ⁶⁶ZnH and ⁶⁸ZnH in the ^{2 +} ground electronic state, the antisymmetric stretching band, 001-000, of ⁶⁴ZnH₂, ⁶⁶ZnH₂ and ⁶⁸ZnH₂ and the 011-010 hot band of ⁶⁴ZnH₂. The highest signal-to-noise ratio for ZnH lines was about 50. The data analysis is in progress and will be presented.