A scientist uses the 454.6 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?
A scientist uses the 454.6 nm output from an Ar+ laser to study the vibrational energy...
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.
4. (10p) A Raman spectrum of an aldehyde was obtained using a He-Ne laser as the excitation source (laser wavelength is 623.8 nm). Calculate the wavelength of the Stokes Raman peak corresponding to the C-0 stretching vibration (1700 cm'). www
Question 1,d) (i,ii) please
b and c would be a nice addition x)
1) A peak observed at 1690 cm' in the mid-IR spectrum of quanine is assigned to the carbonyl stretching vibration. b) Predict the approximate position of the first overtone peak from this vibration (give your answer in cm), and comment on the intensity of this overtone peak compared to the fundamental at 1690 cm. (2 marks) c) Where would you expect to observe a peak due to...