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Chemistry

Infrared Spectroscopy of Carbonyl Compound Vibrations

Quick fact

The carbonyl stretching vibration is so intense that it often dominates the entire infrared spectrum, making it one of the easiest functional groups to identify.

Why this is interesting

You've seen a carbonyl compound in vinegar (acetic acid), nail polish remover (acetone), and even in the air you exhale (carbon dioxide). How can one single infrared measurement tell you exactly which one you're holding?