Based on the selection rules of Raman and IR spectroscopy, for acetyl salicylic acid/aspirin, what are all the modes, and which ones are IR active and which ones are Raman active?
Based on the selection rules of Raman and IR spectroscopy, for acetyl salicylic acid/aspirin, what are all the modes, and which ones are IR active and which ones are Raman active?
IN IR AND RAMAN SPECTROSCOPE, WHAT MODES ARE ACTIVE?
A basic check of the irreducible representation that corresponds to x,y, and z, as well as a cross check with the reducible representation vib, is required to establish which modes are IR active. The mode is IR active if they have the same irreducible representation.
Raman is active in which modes?
All vibrational modes belonging to the symmetry classes xx, yy, zz, xy, xz, and yz are Raman active. This simply means that certain vibrational or rotational modes can be seen in the Raman spectrum.
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