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determine the structure of an unknown carbonyl compound using the infrared spect

ID: 935057 • Letter: D

Question

determine the structure of an unknown carbonyl compound using the infrared spectrum, the molecular formula, and the concept of

determine the structure of an unknown carbonyl compound using the infrared spectrum, the molecular formula, and the concept of ?????degree of unsaturation?????. An exact answer (structure) may not be possible for all unknowns, based upon IR and molecular formula only. In that case, propose the best (simplest) possible structure consistent with your molecular formula. Unknown #? Was identified as????????

Explanation / Answer

The peaks around 3000, suggests the presence of alkyl group. Presence of other characteristic peaks are hard to determine from this IR spectra. However, since, it has a carbonyl group (peak at 1780), it is possible that the compound may be a saturated aliphatic ester.