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DEET NMR

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Why does DEET NMR show 2 triplets and 2 quartets at lower temperature 9C but 1 of each at higher temperature 80 C?

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Solution Summary

This solution contains step-by-step explanations of the origin functional group of the triplets and quartets, and how high temperatures affect rotation of the molecule.

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The one or two quartets come from the one or two methylene (CH2) groups whereas the one or two triplets come from the two methyl groups (CH3). Make sense, so far?

The question is why are the two CH2 groups equivalent at high temperature, yet nonequivalent at lower temperature? Likewise, why are the two CH3 groups equivalent at high temperature, yet nonequivalent at lower temperature? Basically, the same answer provides the solution to both questions. If we want, we can lump the ...

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