Application of Raman Spectroscopy in Inorganic Chemistry
- The Raman technique is often superior to infrared for investigating inorganic systems because aqueous solutions can be employed.
- In addition, the vibrational energies of metal-ligands bonds are generally in the range of 100 to 700 cm-1, a region of the infrared that is experimentally difficult to study.
- These vibrations are frequently Raman active however, and peaks with ∆υ values in this range were readily observed.
- Raman sensors are used in situ and real time monitoring of inorganic substances iin aqueous solution in the sea, in tanks or in vicinity of industrial sites.
- Raman sensors provide identification of many species with a fairly good component resolution and accurate determination of their concentration.
- Raman studies are potentially useful sources of information concerning the composition, structure and stability of coordination compounds.
- It can also be used to assign vibrations and identify different types of ligands.
- Raman spectroscopy is an efficient tool used to investigate semiconductor surfaces or interfaces made up of a semiconductor and metal or an insulator, or to characterize the strains brought about by heavy doping in semiconductors.
- It is being used to study polymers which have high electrical conductivity, optical nonlinearity, strength and forms of electronic coupling to the environment such as piezoelectric effect.
- Raman spectroscopy is used by inorganic chemist to help in establishing the structures of the new molecule that have been synthesized.
- Raman spectroscopy provides like a fingerprint of a substance since each line of Raman spectrum is associated to a particular vibrational mode of the molecule.
- Raman spectroscopy is convenient technique to detect the different substances in a mixture and via an calibration, to determine the content of each species.
- Raman spectroscopy detects the polarizability change of a molecule.
- Raman spectroscopy becomes more important as probe.
