Question

Draw and explain the NMR spectrum of ethanol.

Answer 1

Answer on Question #65963 - Chemistry - Other

Task:

Draw and explain the NMR spectrum of ethanol.

Solution:

Chemical formula is $\mathrm{C}_2\mathrm{H}_6\mathrm{O}$ , which can be written also as $\mathrm{C}_2\mathrm{H}_5\mathrm{OH}$ or $\mathrm{CH}_3\mathrm{-CH}_2\mathrm{-OH}$ . Full structural formula of ethanol:

Skeletal formula of ethanol:

$^{1}$ H NMR spectrum of ethanol:

PPM

d 1.18 is a triplet (methyl group, $-\mathrm{CH}_3$ );

d 3.59 is a quartet (methylene group, $-\mathrm{CH}_2$ );

d 4.70 is a singlet (hydroxy group, -OH).

$^{13}$ C NMR spectrum of ethanol:

d 17.4 is a methyl group, $-\mathrm{CH}_3$ ;

d 57.9 is a methylene group, $-\mathrm{CH}_2$ .

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