Question

A scientist uses the 488.0 nm output from an Ar+ laser to study the vibrational energy levels of pyrimidine. A large peak due to the ring breathing vibration of the molecule is observed in the Stokes Raman spectrum at 990 cm−1. What is the wavelength in nm of the photons corresponding to this peak that the scientist is detecting?

Enter the wavelength of the scattered photons.

Answer 1

​​​​​​the wavelength according to raman spectroscopy is explained in the above provided image.