Nine compounds are drawn below. \'The NMR spectrum for each is among the nine sp

Question

Nine compounds are drawn below. 'The NMR spectrum for each is among the nine spectra on the following 3 pages. Match each compound with its NMR. Draw the structure above the corresponding spectrum. Label each type of proton in the structure with a letter, and put the same letter over the corresponding peak on the NMR spectrum (see example below). Some NMR spectra show a peak hovering above the baseline. This is a magnified view of one of the actual peaks, to allow you to see splitting more clearly. Write down one or two bands which you would look for in the IR spectrum of the compound to verity- your assignment.

Explanation / Answer

Solution :-

The NMR is assigned as the ethanol is correct

in the ethanol we have CH3CH2OH

so the CH3 group will show triplet

CH2 will show quarte and OH will show singlet.

So the structure is correct.

In the IR spectrum the specific peak that will be observed is the peak at about the 3300 cm-1 which will be the broad peak for the OH group.

the C-C peaks are at about 750 to 950 cm-1 and C-H peaks are at about 3000 cm-1

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