Discovering Constant B in Rotational Spectroscopy of CO Molecule"

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SUMMARY

The discussion focuses on determining the rotational constant B for the carbon monoxide (CO) molecule using its rotational microwave spectrum. Participants emphasize the importance of calculating the moment of inertia and fitting the spectrum to appropriate equations. For non-elastic cases, the moment of inertia is crucial, while for elastic cases, both constants B and Dj need to be derived. The conversation highlights the need for clarity in the equations involved in these calculations.

PREREQUISITES
  • Understanding of rotational spectroscopy principles
  • Familiarity with moment of inertia calculations
  • Knowledge of fitting techniques for spectral data
  • Basic grasp of molecular constants in spectroscopy
NEXT STEPS
  • Research the formulas for calculating moment of inertia in diatomic molecules
  • Learn about fitting techniques for rotational spectra using software tools
  • Study the relationship between rotational constants and molecular structure
  • Explore the significance of the constants B and Dj in rotational spectroscopy
USEFUL FOR

Students and researchers in physical chemistry, spectroscopists analyzing molecular spectra, and anyone involved in the study of rotational dynamics of molecules.

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Please follow the template when posting your questions in the HW section.
So I am given a rotational microwave spectrum of a molecule (CO specifically) and I have to find the constant B if it's not elastic , the constants B and Dj if it is elastic. Anyone know how to do that? :frown:
 
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Do I start by finding the moment of inertia? or do I use the spectrum? I have a problem with the moment of inertia I can't find the distance R...
 
What are formulas for both cases? Have you tried to fit the spectrum to them?
 
Borek said:
What are formulas for both cases? Have you tried to fit the spectrum to them?
sorry english is not my native language and I'm not sure i understand what you're saying... you mean the equations?
 
Yes.
 

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