Acta Physica Hungarica

, 60:113 | Cite as

Franck-Condon factors,r-centroids and electronic transition moment variation with internuclear distance ofB 1Σ−X 1Σ band system of BeO using RKR potential

  • N. R. Tawde
  • V. G. Tulasigeri
Atomic and Molecular Physics


The applicability of RKR—the true potential in comparison to that of Morse potential, has been tested for the transition (B 1Σ−X 1Σ) of BeO band system through various tests. The expressionR e(r), the electronic transition moment variation with internuclear distancer, using the Franck—Condon (FC) factors andr-centroids\(\left( {\bar r_{\nu '\nu ''} } \right)\) of the true potential has been derived and evaluated for both linear and quadratic fitting. This has further been used to calculate the smoothed Condon factorP n′n″ and the ratio β(=I/v4/P v′v″) representing its comparison with experimental band strengths (I/v 4). Through the comparative study of such values, viz.p v′v″ ’s ’s β’s and vibrational temperatures deduced both under constancy ofR e and the variation ofR e withr, the efficacy of true potential in relation to that of Morse potential has been discussed.


Internuclear Distance Potential Energy Curve Morse Potential Band System Vibrational Temperature 
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Copyright information

© with the authors 1986

Authors and Affiliations

  • N. R. Tawde
    • 1
  • V. G. Tulasigeri
    • 2
  1. 1.4. Manisha Hous. SocietyAurangabad (Deccan)India
  2. 2.Department of PhysicsKarnatak UniversityDharwadIndia

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