The presence of the carbonyl group in a molecule is easily confirmed by an intense line in the infrared spectrum around 1700 cm-1 that corresponds to the C - O stretching vibration. Locate this line in the calculated infrared spectrum of acetone (“acetone” on the precalculated Spartan file) and note its position in the overall spectrum (relative to the positions of the other lines) and the intensity of the absorption.
a. Speculate why this line is a reliable diagnostic for carbonyl functionality.
b. Examine the lowest frequency mode for acetone and then the highest frequency mode. Describe each and relate to
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