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From the molecular formula, the compound has "4 degrees of unsaturation" (four double bonds or rings), suggesting the presence of an aromatic compound (benzene has four degrees of unsaturation).
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The proton NMR has three sets of peaks; a singlet at 4.3 (2H), a messy singlet around 7.1 (4H), and a singlet at 2.3 (3H). The singlet at 2.3 is consistent with an isolated CH3 adjacent to a mildly electronegative center. The singlet at 4.3 is consistent with a CH2 group adjacent to two mildly electronegative centers (X-CH2-Y), and the singlet at 7.1 is consistent with a disubstituted aromatic compound. The substitution pattern is not what is normally seen in 1,4-disubstitution (two doublets), suggesting 1,2 or 1,3-disubstitution.