Finding rotational constant B for CO from microwave spectrum

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allure123
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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?
 

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