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Indian Institute of Technology Bombay

Molecular Spectroscopy: A Physical Chemist's Perspective

Indian Institute of Technology Bombay and NPTEL via Swayam


This is a comprehensive course on molecular spectroscopy. We start with dispersive and Fourier transform spectroscopic techniques, go on to derive selection rules from Time dependent perturbation theory, develop a quantum mechanical treatment of spin resonance spectroscopy and then move on to a discussion of spectra of polyatomic molecules using symmetry. This course is the same as CH 442 of IIT Bombay
INTENDED AUDIENCE : Chemistry, Physics and UG students of Engineering



Week 1 : Introduction, Disperive spectrometers ,Fourier Transform spectrometers, Signal to Noise Ratio, Microwave Spectroscopy of diatomic moleculesWeek 2 : Derivation of selection rules for microwave spectra, Simple harmonic oscillator, Selection rule, Rovibrational spectraWeek 3 : Anharmonic perturbation, Raman effect, Raman spectroscopyWeek 4 : Time dependent perturbation theory,Interaction of radiation with matter,Fermi’s golden ruleWeek 5 : Einstein treatment, Lasers and lineshapes, Laser spectroscopyWeek 6 : Magnetic resonance,Classical treatment of relaxation,Pulse sequencesWeek 7 : Perturbation theory for weak coupling,Variation method for strong coupling,Double resonance techniquesWeek 8 : Nuclear quadrupole resonance,Zeeman effect,Field effect on diatomic vibrotorWeek 9 : Hyperfine interactions,Electronic spectra of diatomic molecules,Fortrat diagramWeek 10 : Matrix vector formulation of vibration of polyatomic molecules,Normal modes of vibration,Symmetry of normal modes and IR/Raman activityWeek 11 : SummaryWeek 12 : Revision

Taught by

Prof. Anindya Datta

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