**[Cr:3, Lc:2, Tt:1, Lb:0]**

- Introduction to spectroscopy: Electromagnetic spectrum, representation of spectra, resolution and sensitivity, width and intensity of spectral transitions, fourier transform spectroscopy.
- Microwave spectroscopy: Interaction of radiation with a rotating molecule, rotational spectra of rigid diatomic molecules, isotope effect, intensity of rotational lines, non-rigid rotor.
- Infrared spectroscopy: The vibrating diatomic molecule, diatomic vibrating rotor, vibration-rotation spectrum of polyatomic molecules.
- Raman spectroscopy: Theory of Raman scattering, rotational Raman spectra, vibrational Raman spectra, mutual exclusion principle, structure determination using Raman and IR spectroscopy.
- Electronic spectroscopy of atoms and diatomic molecules. Photoelectron spectroscopy, Auger spectroscopy, and ESCA. Zeeman effect, the influence of nuclear spin.
- Magnetic resonance spectroscopy: NMR & EPR, the concept of spin, principles of nuclear magnetic resonance spectroscopy, principles of electron spin resonance spectroscopy.
- Types of magnetic behavior, magnetic moment and molar susceptibility, volume susceptibility measurement. High-spin low-spin crossover with examples and applications.
- Principles and applications of diffraction methods in chemistry. Single crystal and powder samples. Space lattice, unit cell, Laue symmetry, point groups and space groups, Bravais lattices, Bragg's equation. Miller indices and their relationship with diffraction angle and unit cell parameters. Reciprocal space lattice. Brief discussion on selection of a single crystal, data collection and structure solution.

- C. N. Banwell, E. M. McCash, Fundamentals of Molecular Spectroscopy, 4th Ed, Tata McGraw-Hill, New Delhi (1995).
- D. L. Pavia, G. M. Lampman, G. S. Kriz, Introduction to Spectroscopy, 3rd Ed, Cengage, India Edition (2001).
- W. Kemp, Organic Spectroscopy, 3rd Ed, Palgrave, New York (1991).
- I. N. Levine, Physical Chemistry, 5th Ed, Tata McGraw-Hill, New Delhi (2007).