Journalartikel

Jahr der Veröffentlichung: 1997

Seiten: 356-369

Zeitschrift: Journal of Molecular Spectroscopy

Bandnummer: 185

Heftnummer: 2

ISSN: 0022-2852

DOI Link: https://doi.org/10.1006/jmsp.1997.7406

Verlag: Elsevier

Abstract: 
The intensities of the forbidden Q-branch transitions 02(2f)0-00(0)0, 12(2f)0-00(0)0, and 02(2f)1-00(0)0 for HCN have been measured. The intensities of the 0(2f)0-00(0)0 transitions of DCN, (DCN)-C-13-N-15, and (HCN)-C-12-N-15 were also measured, as well as the 0(2f)1-00(0)0 transitions of (HCN)-C-12-N-15 and (HCN)-C-13-N-15. These Q-branch transitions are forbidden even when the effects of l-type resonance are considered so they must get their intensity from some other Coriolis interactions, The much stronger P-and R-branch lines for the e levels of these same vibrational transitions were also measured and they are shown to get most of their intensity from l-type resonance. However, the same Coriolis resonance that gives intensity to the Q-branch transitions seems to affect the Delta J = +/-1 transitions as shown by the difference in the intensities of the Delta J = +1 and Delta J = -1 transitions. Measurements of the intensity of the 03(3e)0-00(0)0 and 03(3f)0-00(0)0 transitions shows that they derive most, but perhaps not all, of their intensity from I-type resonance. An unsuccessful search for forbidden Delta J = 0, e-e transitions for the strong 10(0)0-00(0)0 band shows that there is no detectable mixing of the e and f levels. (C) 1997 Academic Press.

Harvard-Zitierstil: Maki, A., Quapp, W., Klee, S., Mellau, G. and Albert, S. (1997) Intensity measurements of Delta l>1 transitions of several isotopomers of HCN, Journal of Molecular Spectroscopy, 185(2), pp. 356-369. https://doi.org/10.1006/jmsp.1997.7406

APA-Zitierstil: Maki, A., Quapp, W., Klee, S., Mellau, G., & Albert, S. (1997). Intensity measurements of Delta l>1 transitions of several isotopomers of HCN. Journal of Molecular Spectroscopy. 185(2), 356-369. https://doi.org/10.1006/jmsp.1997.7406