Looking for particular Diatomic Molecular Constants

  • Thread starter Jimbone
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  • #1
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Hello,

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 !
 

Answers and Replies

  • #2
Dr Transport
Science Advisor
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look at Herzberg's Infrared and Raman Spectra
 
  • #3
cgk
Science Advisor
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There is a book called "Constants of diatomic molecules" by Huber and Herzberg. It contains nothing but such constants of all kinds of diatomics. Unfortunately it has not been updated for a long time, but for such very common molecules you'll find everything you need in there.
 

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