15min:

C. MUKARAKATE, C. TAO AND S. A. REID, Department of Chemistry, Marquette University, Milwaukee, WI 53233; S. H. KABLE, School of Chemistry, University of Sydney, NSW 2006, Australia.

Building upon the seminal work of Suzuki and Hirota, in our first application of stimulated emission pumping spectroscopy to a halocarbene we report the spectroscopy of the X¹A' state of CHF, previously examined by our group using single vibronic level emission spectroscopy., By exciting selected rovibronic levels in the A¹A'' state belonging to the progressions 2₀ⁿ, 1₀¹2₀ⁿ, and 2₀ⁿ3₀¹, a variety of X¹A' state levels have been observed, including several not previously observed in our emission study. The data provide precise ground state rotational constants and term energies, allowing a more complete modeling of the extensive anharmonic interactions in the X¹A' state. The analysis of these interactions and the continuing search for triplet state levels will be emphasized.