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Infrared Spectroscopy
Infrared spectroscopy is a technique used to determine the structure of organic compounds.

It helps chemists to identify different types of covalent bonds and hence draw conclusions
about the functional groups in a molecule.



How it works
In infrared spectroscopy, a beam of infrared radiation is passed through…

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Interpreting IR Spectra
The most prominent absorption signals can be matched to a particular covalent bond.

This table shows what frequencies different bonds absorb:

Functional group Where it's found Frequency/wavenumber Type of absorption
C-H Most organic 2800-3100 Strong, sharp
molecules
O-H Alcohols 3200-3550 Strong, broad
O-H Carboxylic acids 2500-3300 Medium,…

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