			10min:

LIF STUDIES OF SIMPLE HALOCARBENES.

H. FAN, I. IONESCU AND S. A. REID, Department of Chemistry, Marquette University, Milwaukee, WI 53233.

We will report on new laser induced fluorescence (LIF) measurements of the A¹A''-X¹A' system in the monohalocarbenes HCCl and HCF, and the A¹B₁-X¹A₁ system in the dihalocarbene CCl₂. The carbenes were generated under jet-cooled conditions using a pulsed discharge source. We have applied a variety of techniques to examine the excited state properties, and results from fluorescence excitation spectroscopy, single vibronic level lifetime measurements, and quantum beat spectroscopy will be reported.