Anomalously large isotope effect in the chemiluminescence from N(4S) + O(3P) recombination

✍ Scribed by A.A. Matveev; A.M. Pravilov; A.F. Vilesov

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 603 KB
• Volume: 217
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(93)e1432-g

✦ Synopsis

The effect of isotopic substitution on the chemiluminescence that occurs during the recombination of the N(%) and 0(3P) atoms has been studied for the following isotope combinations. . 14N+ 160, 15N+ laO, 14N+ "0, j5N+ l8O. Emissions in the NO 8, y, p and Ogawa bands were identified in the spectra. Isotopic substitution caused remarkable changes in the vibrational distribution and intensity of the emission from the NO (B %) state ( p bands). This effect can be explained by the isotopic shift of those vibrational levels of the B state relative to the a 41'1 state which are populated via the gateway mechanism.