Question

The following list of frequency ranges (in wavenumbers) are those that correspond to four most important regions of the IR spectrum. For each region indicate the most important structural information that it indicates.

Region 1: 3600-3200 cm⁻¹

Answer 1

Region 1 (3600-3200 cm⁻¹) of the IR spectrum indicates the presence of O-H bonds in molecules, providing structural information about alcohol and carboxylic acid functional groups.

Step-by-step explanation:

The IR spectrum is divided into different regions based on the frequency ranges. Region 1, from 3600-3200 cm⁻¹, is important for indicating the presence of O-H bonds in molecules. The stretching vibration of the O-H bond absorbs IR radiation in this region, providing structural information about alcohol and carboxylic acid functional groups.