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What would the proton NMR (for example, singlet, doublet, etc.) be for the two C

ID: 738922 • Letter: W

Question

What would the proton NMR (for example, singlet, doublet, etc.) be for the two CH2 groups on this molecule?

I think I have the others figured out but I'm confused on the CH2 groups because they are surrounded by Cs with nonequivalent Hs. One CH2 group is attached to a C with no Hs and a C with 2 Hs, and the other CH2 is attached to a C with 3Hs and a C with 2 Hs. Would you add them together (for the n+1 rule) even though they aren't equivalent or would one group of Hs get priority over the other?

Explanation / Answer

The shape and area of peaks are indicators of chemical structure too. In the example above

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