INFRARED SPECTROSCOPY AND RAMAN SPECTROSCOPY FOR CLASS11/12 AND MSc/MSc

Contents

Vibrational motion of a diatomic molecule, force constant and bond strengths, vibration-rotation

spectroscopy, characteristic features.

Infrared (IR) spectroscopy: Origin of IR spectrum, IR regions (finger print and group

frequency regions), normal modes of molecular vibrations, factors influencing vibrational

frequencies (physical states of the sample, vibrational coupling, electrical effect, inductive

effects, hydrogen bonding and ring structure), metal-ligand vibrations, instrumentation – FTIR,

sampling handling techniques, interpretation and examination of IR spectrum, group frequencies

of – alkanes, alkenes, alkynes, aromatic hydrocarbons, alcohols, phenols, aldehydes, ketones,

carboxylic acids, acid halides, acid anhydrides, acid amides, amino acids, amines, isocyanates,

thiocyanites, esters, lactones, ethers, epoxides, peroxides, nitro and nitroso groups,

heteroarmatic compounds, sulphur and silicone compounds, applications of IR spectroscopy.

Applications of IR to inorganic complexes – amino, sulphato, thiocyanato and thiourea

complexes.

Raman spectroscopy: Introduction, quantum mechanical theory of Raman effect (Rayleigh

scattering, Raman scattering – Stokes and Anti-Stokes lines), classical theory of Raman effect,

INFRARED SPECTROSCOPY AND RAMAN SPECTROSCOPY FOR CLASS11/12 AND MSc/MSc