A chemist uses spectroscopy to identify an unknown organic molecule, Molecule J, that contains chlorine. The 13C NMR spectrum of Molecule J is shown below. There are two possible carbon environments that can produce the peak at 168 ppm. Identify one of the possible carbon environments that can produce the peak at 168 ppm.

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A chemist uses spectroscopy to identify an unknown organic molecule, Molecule J, that contains chlorine - VCE - SSCE Chemistry - Question 5 - 2022 - Paper 1

Question 5

A chemist uses spectroscopy to identify an unknown organic molecule, Molecule J, that contains chlorine. The 13C NMR spectrum of Molecule J is shown below. There ar... show full transcript

Worked Solution & Example Answer:A chemist uses spectroscopy to identify an unknown organic molecule, Molecule J, that contains chlorine - VCE - SSCE Chemistry - Question 5 - 2022 - Paper 1

Step 1

Identify one of the possible carbon environments that can produce the peak at 168 ppm.

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Answer

One possible carbon environment that can produce the peak at 168 ppm is a carbonyl carbon, which is typically found in compounds like ketones or aldehydes. In this case, the high chemical shift indicates the presence of a carbon atom double-bonded to oxygen (C=O) typically associated with carbonyl groups.

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