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I've been looking for a few rotational/vibrational diatomic molecular constants for N2 and O2. I've got a some good literature values for most constants I need involving the calculation in possible vibrational and rotational energy states. I'm looking for the centrifugal distortion constants Dv which includes a beta and a De.

Dv = Dv=

__De__+

__Beta__*(v+.5)

and

F=Bv*j*(j+1)-Dv*j^2*(j+1)^2

Generally the Bv term dominates, Dv is just the correction for centrifugal distortion hence the negative sign. But at higher temperatures, which is what I need to look at the Dv term will effect population distribution. If anyone knows a good literature source for these values please let me know.

Thanks !