State the most likely chemical shift region for the underlined (and bolded!) element in: CH3COCH3Group of answer choices
Question
State the most likely chemical shift region for the underlined (and bolded!) element in: CH3COCH3Group of answer choices
Solution
The molecule CH3COCH3 is acetone. The underlined and bolded element is the carbon atom in the carbonyl group (C=O).
In carbon-13 NMR spectroscopy, the chemical shift of a carbon atom depends on its electronic environment. The carbon in the carbonyl group of acetone typically appears in the region of 205-215 ppm.
So, the most likely chemical shift region for this carbon atom in acetone would be "200+ ppm".
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