dc.creator Cheung, A. S-C. en_US dc.creator Ng, Y. W. en_US dc.creator Pang, H. F. en_US dc.date.accessioned 2011-07-12T17:39:19Z dc.date.available 2011-07-12T17:39:19Z dc.date.issued 2011 en_US dc.identifier 2011-MF-10 en_US dc.identifier.uri http://hdl.handle.net/1811/49655 dc.description Author Institution: Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong. en_US dc.description.abstract Laser induced fluorescence spectrum of boron carbide (BC) between 490 and 560 nm has been recorded and analyzed. Gas-phase BC molecule was produced by the reaction of B$_{2}$H$_{6}$ and CH$_{4}$ in the presence of magnesium atom from laser ablation process. The (0, 0), (1, 0), and (2, 0) bands of the B$^{4} \Sigma^{-}$ - X$^{4} \Sigma^{-}$ transition were recorded and rotationally analyzed. Spectra of both isotopes: $^{10}$BC and $^{11}$BC were observed. Equilibrium molecular constants for the B$^{4} \Sigma^{-}$ and the X$^{4} \Sigma^{-}$ states for both isotopes were determined. A comparison of the determined gas-phase molecular constants with those obtained using matrix isolation spectroscopy and the theoretical calculations will be presented. Financial support from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. HKU 701008P) is gratefully acknowledged. en_US dc.language.iso en en_US dc.publisher Ohio State University en_US dc.title LASER INDUCED FLUORESCENCE SPECTROSCOPY OF BORON CARBIDE en_US dc.type Article en_US dc.type Image en_US dc.type Presentation en_US
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