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Chemistry Forums for Students => Physical Chemistry Forum => Topic started by: bmu123 on May 04, 2015, 05:47:18 AM

Title: Te of a harmonic oscillator
Post by: bmu123 on May 04, 2015, 05:47:18 AM

Assuming that, for both electronic states of O₂, the molecule behaves as a harmonic oscillator, find ω_e, the vibrational wavenumber, for the X and B states of O₂.  Then calculate the wavenumber of the (2,2) band, and the difference in electronic energy (minimum to minimum, ΔT_e) between these two electronic
states.

So I'm given a Deslandres table and have worked out ω_e for each state, and found that the wavenumber of the (2,2) band = 47603.1 cm^-1. What equation do I use to work out ΔT_e? I can only find ones for anharmonic oscillators in my notes

Title: Re: Te of a harmonic oscillator
Post by: mjc123 on May 05, 2015, 05:33:42 AM

What is the energy of a vibronic state of a harmonic oscillator? Come on, we've done this in another thread!
(Alternatively, use your anharmonic equation and set the anharmonicity constant to zero.)