Question

3. (3 pts.) Shown below is the IR spectrum 2-acetylcyclohexanone (the structure is provided in the spectrum). 2- acetylcyclohexanone exists as an equilibrium mixture of diketone and two enol forms. Both the diketone and enol forms can be seen in the provide IR spectrum, although the 2 different enols cannot be distinguished. The IR spectra of both enols is essentially identical and so do not be concerned with distinguishing the enols, just assign peaks to a “generic" enol. On the spectrum, identify the peaks that are associated with a specific bond vibration bond by drawing the functional group for that bond, circling the specific vibrating bond and drawing an arrow from the circled bond to the absorption peak, as appropriate. Include all the C-H bonds. & 100 80 60 %T 10 1706 2863 1174 20 M 956 2937 1266 1616 4000 3000 1000 500 400 2000 1500 Wavenumber(cm-11