Methyl iodide photolysis has drawn considerable attention over the past years as an ¡§instantaneous¡¨ pseudo-linear dissociation that may be described by a two dimensional potential energy surface. Single photon excitation in methyl iodide results in a direct rupture of the C-I bound, and the dissociation occurs in 〜0.1 ps. The Ã-band photodissocation of methyl iodide yields ground state methyl radicals [CH3 X(2A2˝)] and either ground state iodine atoms [(2P3/2)I¡ÝI] or spin-orbit excited iodine atoms [(2P1/2)I¡ÝI*] .
In the present work, we used the IR emission technique to study the kinetics of CH3I photolysis. The intensity of 1.315 £gm infrared fluorescence from I* (2P1/2) is detected and analyzed. We have studied the influences on I* emissions by a variety of quenchers. Their roles in additional reactions and the quenching mechanism were reported.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0828104-011908 |
| Date | 28 August 2004 |
| Creators | Wu, Yen-tien |
| Contributors | Chao-ming Chiang, Chen-pin Chang, Kuo-mei Chen |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0828104-011908 |
| Rights | unrestricted, Copyright information available at source archive |
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