Analyzing the Two-Dimensional (2+1) REMPI Spectra of Bromine and Carbon

Abstract:

Experimental investigation have been carried out for dissociation/ionisation of methyl bromide using time of flight mass spectrometer, and the mass signals m/e = 12, 13, 14, 15, 79、81、129 and 131 were assigned to H⁺、C⁺ 、CH⁺ 、CH₂⁺ 、CH₃⁺、 ⁱBr⁺ (i = 79, 81)、（CH)₂ⁱBr⁺ (i=79, 81). Next, two resonant peaks of ⁷⁹Br^+*/ ⁸¹Br^+* were observed at 280.41nm and 281.74nm due to spin-forbidden 5p and 5p which have not been reported before. At last, the C REMPI spectra found near 280.34nm、286.94nm and 284.21nm were assigned, too, which compared with the predicted wavelength values.

• Periodical: Applied Mechanics and Materials (Volume 103)
• Pages: 158-164
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.103.158
• Online since: September 2011
• Authors: Jin Zhang, Jian Guo Ma
• Keywords: Multi-Photon Dissociation, Multi-Photon Ionization, Spectra, Time of Flight Mass Spectrometry

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