148k views
4 votes
What important information does an IR spec involve you? What are the 3 features used to describe IR bands?

User Ronique
by
8.0k points

1 Answer

0 votes

Final answer:

IR spectroscopy provides information on functional groups and confirms the progress of chemical reactions. IR bands are characterized by wavenumber, % transmittance, and peak shapes.

Step-by-step explanation:

What important information does an IR spec involve you? The information provided by an IR (infrared) spectroscopy involves identifying the presence or absence of key functional groups in a molecule. It is particularly useful for chemists to confirm whether a chemical reaction has proceeded as expected by comparing the IR spectra of the reactant and the product.

The three features used to describe IR bands are the wavenumber, the % transmittance, and the shape of the peaks. The wavenumber indicates the number of waves that fit into one centimeter and is inversely proportional to the wavelength. % Transmittance shows how strongly light was absorbed at each frequency, where a lower % transmittance indicates a higher absorption. Lastly, the peak shapes can provide information about the environment of the functional groups.

User Mistiru
by
7.2k points

Related questions

asked Mar 1, 2024 226k views
KGBird asked Mar 1, 2024
by KGBird
8.1k points
1 answer
1 vote
226k views
asked Dec 2, 2024 198k views
Ozgur Sar asked Dec 2, 2024
by Ozgur Sar
8.3k points
1 answer
1 vote
198k views