			15min:

RYDBERG STATES OF BORON HYDRIDE RADICALS BH AND BH₂..

JASON CLARK, HARTMUT G. HEDDERICH AND EDWARD R. GRANT, Department of Chemistry, Purdue University, West Lafayette, IN 47907-1393.

Ionization detected absorption spectra of Rydberg states for BH and BH₂ will be reported. Boron hydride radicals are produced by ArF (193 nm) photolysis of B₂H₆ (diborane) in a supersonic pulsed-jet. Ions produced by Resonance-Enhanced Multiphoton Ionization are mass selected and detected using a time-of-flight mass spectrometer. Various Rydberg states appearing as resonant features between 370 and 500 nm will be discussed.