Infrared Spectral Interpretation

Infrared interpretation must be performed on a high quality spectrum, otherwise, misleading results can be obtained. More often than not, bad sample preparation is the main cause of poor quality IR spectra.

This module will introduce general infrared interpretation concepts to help you with structural elucidation.

Topics include:

• Infrared spectral quality
• Orbital hybridization
• General interpretation concepts
• IR frequencies
• Alkanes
• Alkenes
• Alkynes
• Aromatic compounds
• Alcohols
• OH group
• Ethers
• Amines
• Carbonyl frequencies
• Aldehydes
• Ketones
• Carboxylic acid
• Esters
• Amides
• Anhydrides
• Acid chlorides
• Fermi resonance
• Carbonyl stretching frequencies
• Nitrogen stretching frequencies
• Sulfur stretching frequencies
• Phosphorous, boron, and halogen stretching frequencies
• Inorganic stretching frequencies