Question

 Raman rotational spectra of equation was observed with Hg light with Rayleigh line at equation. Stokes lines were observed at equation. Draw the rotational energy level diagram with Stokes and anti Stokes lines. 

21 Jan 2026
Answer :
Word Count : 557
We are asked to analyze the Raman rotational spectrum of ( \text{H}_2 ) and draw the rotational energy levels with the observed Stokes and anti-Stokes lines. Let's solve this step by step manually. --- Given: * Rayleigh line: ( \tilde{\nu}_0 = 2294 \ \text{cm}^{-1} ) * Stokes lines: ( \tilde{\nu}_S = 22581, 22337, 22094, 21851 \ \text{cm}^{-1} ) Step 1: Calculate Raman shifts Raman shift ( \Delta \tilde{\nu} = \tilde{\nu}_0 - \tilde{\nu}_S ) 1. ( \Delta \tilde{\nu}_1 = 22940 - 22581 = 359 \ \text{cm}^{-1} ) 2. ( \Delta \tilde{\nu}_2 = 22940 - 22337 = 603 \ \text{cm}^{-1} ) 3. ( \Delta \tilde{\nu}_3 = 22940 - 22094 = 846 \ \text{cm}^{-1} ) 4. ( \Delta \tilde{\nu}_4 = 22940 - 21851 = 1089 \ \text{cm}^{-1} ) --- Step 2: Relation with rotational constant ( B ) For a Raman-active diatomic _________ ______ ____ _________ _______ _______ ____.
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