IR Spectroscopy (Chapter 4)

Infrared (IR) spectroscopy is an analytical technique used to identify and study chemical substances based on how they interact with infrared light. In IR spectroscopy, a sample is exposed to IR radiation, causing molecular vibrations. Different bonds within a molecule absorb specific frequencies of IR radiation, resulting in a unique absorption spectrum that acts as a "fingerprint" for the compound.

Key Features of IR Spectroscopy:
Functional Group Identification: Peaks in the IR spectrum correspond to specific bond types, allowing chemists to identify functional groups (e.g., O-H, C=O, N-H).
Molecular Structure Insights: The pattern and intensity of absorptions provide information on molecular structure, bonding, and environment.
Qualitative Analysis: IR spectra are often used for qualitative analysis in both organic and inorganic chemistry.
IR spectroscopy is widely used in research, quality control, and forensic analysis due to its effectiveness in identifying and characterizing molecular structures.