what is the stretching frequency (in cm⁻¹) of the following carbonyl?\n1655\n1775\n1715\nnone of the…
what is the stretching frequency (in cm⁻¹) of the following carbonyl?\n1655\n1775\n1715\nnone of the above\n1745
Answer
Explanation:
Step1: Identify the carbonyl type
The given carbonyl is an aromatic - conjugated cyclohexanone. Conjugation lowers the stretching frequency of the carbon - carbon double bond.
Step2: Recall the frequency ranges
Aromatic - conjugated ketones typically have carbonyl stretching frequencies in the range of 1680 - 1640 $cm^{-1}$.
Answer:
1655