While the carbonyl stretching frequency for simple aldehydes, ketones, and carboxylic acids is about 1710 cm^-1, the carbonyl stretching frequency for amides is about ________.

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The carbonyl stretching frequency for amides is lower than that for simple aldehydes, ketones, and carboxylic acids due to resonance stabilization of the amide carbonyl group, which reduces the double bond character of the C=O bond, leading to a frequency around 1660 cm^-1.

While the Carbonyl Stretching Frequency for Simple Aldehydes, Ketones, and Carboxylic