Dissociation of energy-selected c-C3H6S+ studied with threshold photoelectron-photolon coincidence experiments and calculations

標題:	Dissociation of energy-selected c-C3H6S+ studied with threshold photoelectron-photolon coincidence experiments and calculations
作者:	Chiang, SY Fang, YS Lin, CN 應用化學系 Department of Applied Chemistry
公開日期:	10-五月-2006
摘要:	The dissociation of energy-selected c-C3H6S+ was investigated in a region 10.2-10.9 eV with a threshold photoelectron-photoion coincidence technique. Branching ratios and average releases of kinetic energy for channel c-C3H6S+ -> H2CS+ + C2H4 were derived from coincidence mass spectra. The measured small releases of kinetic energy near the appearance onset agree with statistical calculations; a linearly extrapolated threshold at 10.39 +/- 0.01 eV agrees with a predicted energy 10.35 eV with the GAUSSIAN-3 method. We discuss plausible mechanisms for c-C3H6S+ dissociating to CH3CS+ + CH3 based on G3B3 calculations to rationalize the absence of CH3CS+ signal in these experiments. (c) 2006 Elsevier B.V. All rights reserved.
URI:	http://dx.doi.org/10.1016/j.cplett.2006.03.020 http://hdl.handle.net/11536/12259
ISSN:	0009-2614
DOI:	10.1016/j.cplett.2006.03.020
期刊:	CHEMICAL PHYSICS LETTERS
Volume:	422
Issue:	4-6
起始頁:	475
結束頁:	480
顯示於類別：	期刊論文

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