RKRV Potential Energy Curves, Dissociation Energies, g-Centroids And Franck-Condon Factors Of YO, CrO, BN, ScO, SiO And AlO Molecules

• Published in: Astrophysics and space science 1998-06, Vol.262 (2), p.223-240
• Main Authors: Reddy, R R, Nazeer Ahammed, Y, Rama Gopal, K, Abdul Azeem, P, Anjaneyulu, S
• Format: Article
• Language: English
• ISSN: 0004-640X; 1572-946X
• DOI: 10.1023/A:1001848028629

The potential energy curves for the electronic ground states of astrophysically important YO, CrO, BN, ScO, SiO and AlO molecules are constructed techniques using the five-parameter Hulburt-Hirschfelder function. The estimated dissociation energies are 7.235c0.15, 4.337 c 0.09, 3.917 c 0.09, 6.899 c 0.14, 8.181 c 0.17 and 5.202 c 0.11 eV for YO, CrO, BN, ScO, SiO and AlO, respectively. The estimated D sub(0) values are in reasonably good agreement with literature values. The r-Centroids and Franck-Condon factors for the bands of B super(2) super(+) - X super(2) super(+) of YO, B super(5) -X super(5) > of CrO, A super(3) - X super(3) of BN, B super(2) super(+) -X super(2) super(+) of ScO, E super(1) super(+) - X super(1) super(+) of SiO and D super(2) super(+) - X super(2) super(+) and B super(2) super(+) -X super(2) super(+) of AlO molecules have been determined. The Franck-Condon factors are evaluated by the approximate analytical method of Jarmain and Fraser. The absence of the bands in these systems is explained.