Question

Charecterristic stretchng frequency of some functional groups

Answer 1

Characteristic IR Absorption Frequencies of Organic Functional Groups. Functional Group. Type of Vibration, Characteristic Absorptions ( cm-1), Intensity.

Answer 2

The table below lists the characteristic IR absorptions of some common functional groups. ... 2 carbonyl groups (one in the carboxylic acid group at the top and one in the ester group on the right). There is a single, broad band at just under 1800 cm-1 in the spectrum.