Syllabus:

Introduction: Electromagnetic spectrum, interaction of electromagnetic radiation with matter, types of molecular spectra, factors contributing width and intensity of spectral lines.

Rotational spectroscopy: Classification of molecules, rotational spectrum of rigid diatomic molecule, isotope effect on rotational spectra and numericals.

Vibrational spectroscopy: simple harmonic oscillator, vibrational motion of a diatomic molecule, force constants and bond strengths, zero point energy, anharmonicity of molecular vibrations and its consequences, Morse potential energy diagram, normal modes of molecular vibrations and numericals.

Raman spectroscopy: theories of Raman effect, Rule of mutual exclusion.