Rates of cydobutene i~merisation induced by excilation or the 6-O =C-H strelching overtone al 16603 cm-' have been measured as a funcrion of the pressure of lhe bath gases He. Ar. CO,, CH,, SF6 and cyclobutene These data have been used LO compare energy transfer paramelers obtained from au approxima
Infrared multiphoton excitation: Energy distribution of reacting molecules from overtone excitation studies
โ Scribed by Sanford Ruhman; Oded Anner; Shlomo Gershuni; Yehuda Haas
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 469 KB
- Volume
- 99
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
A method is offered to estimate quantitatively the energy distribution of molecules reacting after being excited by multiphoton absorption of infrared radiation. The method is based on the comparison of the real time reaction kinetics obtained in the infrared multiphoton experiment with those observed upon excitation of a vibrational overtone. Results obtained for the dissociation of tetramethyldioxetane under low-pressure conditions are used as a demonstration.
๐ SIMILAR VOLUMES
Vibrational energy distribution m CF,Br. produced by multiple-photon excitation. is studied wth the use of Raman probing of fundamental bands and also overtone and combmations bands. On a collision-free time scale, statistical energy distrlbutlon among vibratlonal modes 1s found at energies over 720