NMR Spectrum of CH3 CH2 OH: Characterizing 3 Spectral Line Bunches

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SUMMARY

The NMR spectrum of CH3 CH2 OH displays three distinct bunches of spectral lines, with the CH2 group contributing four lines due to spin-spin coupling. This phenomenon is explained by the n+1 rule, where 'n' represents the number of neighboring hydrogen atoms. Understanding the interaction between hydrogens on adjacent carbons is crucial for interpreting the spectral data accurately.

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  • Basic knowledge of NMR spectroscopy
  • Understanding of spin-spin coupling
  • Familiarity with the n+1 rule in NMR
  • Ability to interpret spectral line patterns
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  • Study the principles of spin-spin coupling in NMR spectroscopy
  • Learn about the n+1 rule and its applications in spectral analysis
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Chemists, students of organic chemistry, and researchers analyzing molecular structures using NMR spectroscopy will benefit from this discussion.

athithi
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The NMR spectrum of CH3 CH2 OH consists of 3 bunches of spectral lines. the number of spectral lines in the bunch correspoding to CH2 group is ...?

Answer is 4...how to do this ?...
 
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First of all - why do the lines split?
 
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In this case, http://en.wikipedia.org/wiki/Proton_NMR" regarding spin-spin coupling.
 
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athithi said:
The NMR spectrum of CH3 CH2 OH consists of 3 bunches of spectral lines. the number of spectral lines in the bunch correspoding to CH2 group is ...?

Answer is 4...how to do this ?...

There's coupling involved, look at the hydrogens connected on the "neighboring carbon". The wikipedia has an explanation for how that works. There's also a n+1 rule that works similarly for this situation.
 

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