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.