WileyPLUS - Worked example 4

Learning outcome

Determine atomic/molecular structure of organic compounds using nuclear magnetic resonance spectral data

Predict the number of signals and the splitting pattern of each signal in the ¹H NMR spectrum of ethylmethylketone:

3 equivalent H (H^a) atoms of methyl group: no splitting, singlet.

2 equivalent H (H^b) atoms of methylene group: 3 equivalent neighbouring H atoms (n = 3), quartet.

3 equivalent H (H^c) atoms of terminal methyl group: 2 equivalent neighbouring H atoms (n = 2), triplet.

Chemistry