Define the frequency of the carbonyl stretch

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1. Based on what you know about vibrational frequencies, would you expect cyclohexanecarbaldehyde or benzaldehyde to have a higher C=O stretch?

2. Would the presence of a nitro group in the 4- and 4'- positions in benzophenone increase the frequency of the carbonyl stretch or decrease it? Explain using resonance structures.

Reference no: EM13550642

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