# THE REMPI STUDY OF BH IN THE RANGE OF 368-370NM

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/19615

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 Title: THE REMPI STUDY OF BH IN THE RANGE OF 368-370NM Creators: Clark, Jason; Grant, Edward R.; Zhang, Limin Issue Date: 2000 Publisher: Ohio State University Abstract: The mass-selected resonance-enhanced multi-photon ionization (REMPI) of BH in the spectral range of 368-372 nm has been studied. It is shown that the spectral peaks with ion mass 12, 11 and 10 can be assigned to the $A1P (v^{\prime}=2)- X 1S+ (v^{\prime\prime}=0)$ one-photon transition of 11BH and 10BH free radicals. With very few REMPI studies on BH, the 2-0 band transitions of A-X for 11BH and 10BH are first observed. By using a 40 K rotational temperature and approximately a 600 K background rotational temperature for BH free radicals, the spectra observed was simulated quite well. The observed isotopic shifts of $A1P (v^{\prime}=2)- X 1S+ (v^{\prime\prime}=0)$ band between 11BH and 10BH, which is between 11.7 and 13.0 cm-1, are mainly due to the vibrational isotope shifts. Description: Author Institution: Dept. of Chemistry, Purdue University; Open Laboratory of Bond-Selective Chemistry, University of Science and Technology of China URI: http://hdl.handle.net/1811/19615 Other Identifiers: 2000-FA-06