Which of the following structures with molecular formula C₈H₉Br, is consistent with the following ¹H NMR spectrum. ¹H NMR: 2.8 $\delta$ (triplet, 2H), 4.65 $\delta$ (triplet, 2H), 7.2 $\delta$ (multiplet, 5H)

Question

Quizplus · Accepted Answer

From the given NMR spectrum, we can conclude that the molecule has:
- Two sets of triplets at δ 2.8 and δ 4.65, each consisting of 2H
- A multiplet at δ 7.2, consisting of 5H

Looking at option D, we can see that it contains two pairs of -CH2- groups with a total of 4H, which could give two triplets in the NMR spectrum. It also has a benzene ring with 5H, which could give a multiplet at δ 7.2. Therefore, option D is consistent with the given NMR spectrum.

Options A, B, and C do not have the correct number or type of protons to give the observed NMR peaks.

Therefore, the answer is D.

Which of the Following Structures with Molecular Formula C8H9Br, Is δ\deltaδ

Which of the Following Structures with Molecular Formula C₈H₉Br, Is $\delta$