 Infrared photodissociation spectroscopy

Infrared photodissociation spectroscopy (IRPD) is a powerful analytical technique used primarily in molecular spectroscopy to study the structure and dynamics of molecules, particularly ions and complexes. Here's a brief overview of the method: ### Principles: 1. **Infrared Absorption:** The technique relies on the absorption of infrared (IR) radiation by molecules. Molecules have specific vibrational modes that correspond to particular wavelengths of IR light. When IR light is absorbed, it can excite these vibrational modes.