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Paper : Atomic And Molecular Physics

Paper Code : 09020204


Sr. No. Topic Domain Hours as per UGC
1. 1.Spectrum of He-atom and Heisenberg resonance

2.Physical interpretation of quantum numbers

3.Pauli principle and the building-up principle

4. Terms for equivalent & non-equivalent electron atom

5. Space Quantization: Stern-Gerlach experiment

6. Normal & anomalous Zeeman effect

7. Stark Effect

8.Paschen – Back effect

9.Intensities of spectral lines General selection rule; 10.Hyperfine structure of Spectra lines: Isotope effect and effect of Nuclear Spin

Must  Know 10 hrs
2. 1.Rotation of molecules: Classification of molecules 2.Interaction of radiation with rotating molecules 3.Rotational spectra of rigid diatomic molecules, Isotope effect in rotational spectra, Intensity of rotational lines, 4.Non rigid rotator, Information derived from rotational spectra

5. Infrared spectroscopy: The vibrating diatomic molecule 6.The diatomic vibrating-rotator spectra of diatomic molecules

7.Raman Spectroscopy: Introduction, Pure rotational Raman spectra, Vibrational Raman Spectra, Nuclear Spin and intensity alternation in Raman spectra, Isotope effect, Raman Spectrometer.

Must Know 10 hrs
3. 1.Born Oppenheimer approximation

2.Vibrational coarse structure of electronic bands

3.Progression and sequences

4.Intensity of electronic bands-Frank Condon Principle

5. Dissociation and pre-dissociation, Dissociation energy

6.Rotational fine structure of electronic bands, The Fortrat parabole

7.Electronic structure of diatomic molecules 8.Fluorescence spectroscopy: Fluorescence and Phosphorescence

9.Kasha’s rule, Quantum Yield

10.Non radiative transition, Jablonski Diagram

11.Spectro fluorometer, Time resolved fluorescence and determination of excited state lifetime

Must Know 10 hrs
4. 1.NMR: Basic principles Classical and quantum mechanical description

2.Bloch equations

3. Spin-spin and spin-lattice relaxation times

4.Chemical shift and coupling constant 5.Experimental methods – Single coil and double coil methods

6. High resolution methods; ESR: Basic principle, ESR spectrometer, nuclear interaction and hyperfine structure

7. Relaxation effects, g-factor, Characteristics, Free radical studies and biological applications.

Must Know 10 hrs


References Books

  1. Concepts of Modern Physics by Arthur Beiser (McGraw-Hill Book Company, 1987).
  2. Atomic spectra & atomic structure, Gerhard Hertzberg: Dover publication, New York.
  3. Molecular structure & spectroscopy, G. Aruldhas; Prentice – Hall of India, New Delhi.
  4. Fundamentals of molecular spectroscopy, Colin N. Banwell & Elaine M. McCash, Tata McGraw –Hill publishing company limited.
  5. Introduction to Atomic spectra by H.E. White
  6. Spectra of diatomic molecules by Gerhard Herzberg