Infrared Spectroscopy For Ether

Oxygen forms two bonds. An oxygen atom could be found in between two carbons, as in dibutyl ether.

If you look at an IR spectrum of dibutyl ether, you will see:

• there are the usual sp³ C-H stretching and CH₂ bending modes at 2900 and 1500 cm^-1.
• there is a strong peak near 1000 cm^-1. This peak is due to the C-O stretching vibration.

Figure IR7. IR spectrum of dibutyl ether. Source: SDBSWeb: http://riodb01.ibase.aist.go.jp/sdbs/ (National Institute of Advanced Industrial Science and Technology of Japan, 14 July 2008)