Journal of the Serbian Chemical Society 2010 Volume 75, Issue 5, Pages: 659-667
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Franck-Condon factors and observed band strength distribution in the vibrational structure of the Ag2 D-X band system
Antić-Jovanović Ankica, Momčilović Miloš, Bojović Vojislav, Khakoo Murtadha A., Laher Russ R.
Potential curves for the X1Σg+ and D1Σu+ states of three diatomic silver isotopomers, 107Ag2, 107Ag109Ag and 109Ag2, were determined from the best available molecular constants by the Rydberg-Klein-Rees method. From these potentials, Franck-Condon factors and band-origin wave numbers were computed, and the reliability of the obtained values was verified by comparison with the observed band strength distribution and the measured band origin positions in a previously recorded D-X spectrum. The ratios of the Franck-Condon factors to those of corresponding isotopic bands were found to be very close to unity, revealing only a very small isotopic effect on the Franck Condon factors of Ag2 D-X bands. The isotopic shifts of the calculated band origins agree well with previously measured displacements of band heads.
Keywords: Franck-Condon factors, band strength distribution, Ag2 D-X band system, isotopic effect
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