Some Chemical Applications of Gas Phase Linear Raman Spectroscopy

摘要: Almost as soon the Raman effect was discovered for liquids [1] and solids [2], spectra of several gases were reported [3–5]. Since number scattering molecules per unit volume is considerably less in gas phase than other phases, weak signal intensity initially prohibited observation all but stronger lines gases. band contours nontotally symmetric vibrations are ordinarily very broad, frequently little information can be obtained from them even terms center. However, it should pointed out that width good an indicator a vibration depolarization ratios [6]. Nevertheless, with advent high-powered lasers vastly improved detection systems, peaks has become routine, techniques spectroscopy have more commonplace. The current uses include, not limited to, completion vibrational assignments, structural determinations, conformational analyses, study anharmonic such internal torsions, ring-puckering modes, low frequency bending motions quasi-linear molecules. We shall briefly touch on each these subjects using mainly illustrations our own studies this limitation taken indication laboratory only utilizing gas-phase data. simply data most part because readily available we had time to prepare manuscript. reader keep limitations mind review various applications spectroscopy.