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Raman Spectroscopy

Raman Spectroscopy. Chapters 18. Elastic scattering Photon scattered at same  as incident photon Inelastic scattering Photon scattered at different  as incident photon. e - cloud of molecule can be polarized by E.M. radiation

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Raman Spectroscopy

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  1. Raman Spectroscopy Chapters 18

  2. Elastic scattering Photon scattered at same  as incident photon Inelastic scattering Photon scattered at different  as incident photon

  3. e- cloud of molecule can be polarized by E.M. radiation • It is possible to induce dipole moment using elect field of E.M. • Size of induced dipole depends on polarizability of e- cloud Induced dipole moment polarizability Oscillating electric field

  4. Raman Selection Rule •  with vibration • Polarizability changes with bond length/vibration Change in bond length

  5. Gaussian Calculations • CO2 • SF6 • Chloroform

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