Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter8: Molecules And Materials
Section: Chapter Questions
Problem 8.72PAE
Related questions
Question
a) Shown below is the 1H NMR (CDCl3 is the solvent) of butanal. The splitting pattern of each of the four peaks is provided. For each of the four peaks determine the number of hydrogens that belongs to each peak from the red integral line. Provide the number of the hydrogens in the order A, B, C, D.
b)
What happens when the radiofrequncy pulse in the NMR instrument matches the Larmor Frequncy of an NMR active nucleus?
| A. |
The electrons transition to the LUMO |
|
| B. |
The nuclei undergoes a spin flip |
|
| C. |
Nothing |
|
| D. |
The bonds in the molecule stretch and vibrate |
Transcribed Image Text:D
Triplet
H2
H.
CH3
В
Triplet
A
Triplet
10
6.
sextet
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