Raman spectroscopy is a spectroscopic technique based on inelastic scattering of monochromatic light, usually from a laser source. In the spectrum of the light scattered, in addition to the incident frequency other frequencies are observed. The frequency differences to the incident light correspond to the characteristic of the material energies of different rotation, vibration processes. From the spectrum obtained, it is possible to draw conclusions about the investigated substance, similar to the spectrum obtained by infrared spectroscopy.
Raman spectra of ionic liquids
with various concentrations
Melted NbCl5 at 210°C in high temperature cell (20-250°C) for in situ Raman spectra measurements