what is the stretching frequency (in cm^-1) of the following carbonyl?\n1715\nnone of the above\n1685\n1655\n…
what is the stretching frequency (in cm^-1) of the following carbonyl?\n1715\nnone of the above\n1685\n1655\n1745
Answer
Explanation:
Step1: Identify the carbonyl type
The given carbonyl is an $\alpha,\beta -$ unsaturated cyclic ketone.
Step2: Recall the stretching - frequency range
For $\alpha,\beta -$ unsaturated cyclic ketones, the carbon - oxygen double - bond ($C = O$) stretching frequency is around 1685 cm⁻¹.
Answer:
1685