Ramanaktiivinen
Ramanaktiivinen refers to a substance or phenomenon that exhibits Raman scattering. Raman scattering is a form of light scattering that occurs when light interacts with a material. Specifically, it is an inelastic scattering process where photons lose or gain energy during the collision with the molecules of the material. This energy change is characteristic of the vibrational modes of the molecules. When a molecule is described as ramanaktiivinen, it means that its molecular vibrations interact with incident light in a way that leads to detectable Raman scattered light.
The ramanaktiivisuus of a molecule is determined by the change in its polarizability during a molecular vibration.