Draw a compound that is consistent with the following ^3H NMR data: a. C_4H_9Br, has 3 signals...

Question:

Draw a compound that is consistent with the following ^3H NMR data:

a. C_4H_9Br, has 3 signals in the ^1H NMR spectrum, 2 doublets and a 9-line multiplet.

b. C_4H_9Br_2, has 3 signals in ^1H NMR spectrum, a singlet, a triplet and a quartet.

Give the structure of a compound with a formula of C_4H_10O_2 that gives only two singlets in the ^1H NMR spectrum in an integral ratio of 3:2.

HNMR Spectroscopy:

NMR is widely used in elucidation of chemical structures. Proton NMR or H NMR is sensitive to the hydrogen nuclei in a substance which is why it is a good option for analysis of hydrogen-containing organic compounds.

Answer and Explanation:

a. {eq}C_4H_9Br {/eq}

Hydrogen atoms encircled yellow will give a doublet, green has a 9-line multiplet and blue has a doublet.

b. {eq}C_4H_8Br_2 {/eq}

The hydrogen atoms encircled blue is an NMR singlet, yellow is a quartet, and green is a triplet.

c. {eq}C_4H_{10}O_2 {/eq}

The hydrogen atoms encircled blue and green give an integral ratio of 3:2.


Learn more about this topic:

How to Read NMR Spectra of Organic Compounds
How to Read NMR Spectra of Organic Compounds

from Organic Chemistry: Help & Review

Chapter 2 / Lesson 2
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