Raman spectroscopy can theoretically identify all substances due to the presence of active Raman modes in all point groups. However, the effectiveness of detection is contingent upon the magnitude of these modes, which may be too small to measure in certain cases. Monatomic gases, such as noble gases, are generally transparent to Raman spectroscopy unless adsorbed onto a surface, where spectra can be observed. Liquid state studies present additional challenges in obtaining clear Raman spectra.
PREREQUISITESChemists, materials scientists, and researchers involved in spectroscopy who seek to understand the capabilities and limitations of Raman spectroscopy in identifying various substances.
Dr Transport said:in theory, yes. All point groups have active Raman modes, but the magnitude may not be large enough to measure.