Lady Doak College

About LDC

Supplementary Examination of Even Semester March 2016New   Important Notice for Supplementary Students(After the period of study)New   College Convocation on March 12th forenoon!New   The Convocation at the College will be held only after the Convocation at Madurai Kamaraj UniversityNew   National Conference on Smart Materials – 23rd and 24th February 2016New   Workshop on Biomolecular Modeling & Dynamics – 27th -29th January 2016New   LFE AT LDCNew   SUPPLEMENTARY EXAMINATION RESULTS OCT/NOV 2015New    PROVISIONAL RESULTS - NOVEMBER 2015New   Supplementary Examinations(After the regular Period of Study)New   Revaluation November 2015New   VBC Students List – 2015 – 2016 Even SemesterNew   Environmental Studies Students List - 2015-2016 Even SemesterNew    Electoral Registration in National Voters Service Portal – www.nvsp.inNew    Supplementary Examinations Notice - April 2016New   Registration for Supplementary Examinations – March/April 2016New    Registration for completion of formative componentsNew     National Workshop on Maintenance and Operation of Basic Laboratory Equipments  -15th to 19th February 2016New   Notification Regarding the Provisional Certificate issueNew   Prevention of crimes against Women New    Baseline Inventory Report on Green House Gas (GHG) Emission at Lady Doak College New     Application form for Teaching PostsNew    Equivalence of Degree - B.Sc (Spl.) Mathematics     Equivalence of Degree - B.Sc & M.Sc. Zoology   Equivalence of Degree - B.Sc. Physics   Equivalence of Degree - B.Com, M.Com, B.Sc. Maths   Equivalence of Degree - B.Sc. Botany & B.A. Economics    Appointment of Examiners - Application Form    Reaccreditation (3rd cycle) Status and Peer Team Report 




6 hrs/week

On successful completion of the course, the student will be able to
  • recognize the spectroscopic techniques in terms of interaction of EMR with molecules
  • describe the principles of the rotational, vibrational, electronic, magnetic resonance spectroscopic and mass spectrometric techniques
  • apply the principles of spectroscopy to understand the structure of compounds
  • interpret the spectroscopic data for any given compound
  • propose the structure of a new compound based on the spectroscopic data


18 hrs

Electromagnetic radiation –interaction of EMR with molecules-types of molecular spectroscopy-principles and instrumentation of rotational, vibrational and NMR spectroscopic techniques- factors affecting line width and intensity - signal to noise ratio and resolving power - absorption and emission spectroscopy

Microwave Spectroscopy - Rotation of molecules-Rotational Spectra of rigid rotator, Intensities of rotational lines, Effect of Isotopic substitution - Rotational spectrum of non-rigid rotator-linear & symmetric top molecules- Stark effect.

Applications of Microwave spectroscopy - determination of bond length, bond angle dipole moment and atomic mass from microwave spectra


18 hrs

The Vibrating Diatomic Molecule - harmonic and anharmonic oscillators- Diatomic Vibrating Rotator- Vibrations of polyatomic molecules-Molecular vibrations, types of molecular vibrations, Rotational Vibrational Spectrum of Linear and Symmetric- top molecules.

Applications- Skeletal vibrations of organic and inorganic molecules- Factors influencing vibrational frequency of bonds- hydrogen bonding, electronic effect, mass effect, conjugation, ring-size -identification of functional groups ( both organic and Inorganic) using IR data.
Raman Spectroscopy- classical and quantum theory of Raman effect- Rotational Raman spectra-Linear, Symmetric Top molecules-Vibrational Raman Spectra- Raman activity of vibrations, Rule of Mutual Exclusion, polarisability ellipsoids-Rotational Fine structures- polarized and depolarized Raman lines-

Combined application of IR and Raman spectral data for in structural study of simple molecules and ions like N2O, ClF3, ClO4? and NO3?.


18 hrs

Electronic Spectra of diatomic molecules- The Born-Oppenheimer Approximation, Vibrational Coarse structure:Progressions, Intensity of vibrational-Electronic spectra: Franck-Condon Principle,Dissociation Energy and Dissociation Products, Rotational Fine Structure 0f Electronic-Vibration Transitions, The Fortrat Diagram, Predissociation
Applications electronic transitions in organic molecules- solvent effects- Woodward rules for calculation of ?max for dienes, polyenes and carbonyl compounds

Mass Spectrometry-Mass spectrum, Determination of molecular weight, molecular formulae, isotopic abundance- molecular ion - metastable ions- fragmentation routes- fragmentations associated with hydrocarbons- hydroxyl compounds, ethers, ketones, aldehydes, acids, amines, nitro compounds , halogen compounds with more than one Cl /Br atoms (both aliphatic and aromatic compounds to be done simultaneously).


18 hrs

Nuclear spin states and NMR active nuclei, nuclear magnetic moments-Mechanism of resonance absorption- Population of nuclear spin states, Proton nmr- interaction of spin magnetic moment of a proton with external magnetic moment, chemical shift and shielding, chemical equivalence, chemical environment and chemical shift, magnetic anisotropy, spin-spin splitting, coupling constant, geminal, vicinal , long-range, trans, aromatic, allylic coupling, factors influencing coupling constant, splitting of nmr signals- AX and AMX types - Proton NMR spectra of organic molecules.

Applications : Structural elucidation of organic molecules using Proton NMR spectral data.


18 hrs

13C nucleus – chemical shifts, calculation of 13C chemical shifts, spin-spin splitting of 13C signals, proton decoupled 13C spectra, NOE, Off-resonance decoupling, DEPT, molecular relaxation in 13C NMR. 9 hrs

Use of IR, UV-visible, NMR and Mass spectral data for structural elucidation of organic compounds. 9 hrs


Aruldhas G., Molecular Structure and Spectroscopy, Prentice-Hall of India Pvt. Ltd., New Delhi, 2001.

Banwell C.N. and E.M.McCash, Fundamentals of Molecular Spectroscopy, Tata McGraw-Hill Publishing Co. Ltd., 7th Edition, New Delhi, 1999 .

Barrow G.M.,Introduction to Molecular Spectroscopy, McGraw Hill, New York, 1964.

Bellamy L.J., The Infrared Spectra of Complex Molecules, vol 2, Chapman and Hall, 3rd Edition, London, 1975.

Dyer J.R., Applications of Absorption Spectroscopy of Organic Molecules, Prentice-Hall of India Pvt. Ltd., New Delhi, 1987.

Ghosh P.K., Introduction to Photoelectron Spectroscopy, John Wiley , New York, 1989.

Jag Mohan, Organic Spectroscopy, Principles and Applications, Narosa Publishing House, Chennai, 2004

Kemp W., Organic Spectroscopy, Macmillan Press Ltd., London, 1991.

Russel S. Drago, Physical Methods in Inorganic Chemistry, Affiliated East-West Press Pvt. Ltd., New Delhi, 1968.

Russel S.Drago, Physical Methods in Chemistry, Saunders, Philadelphia, 1977.

Silverstein R.M., Bassler G.C., Morill T.C., Spectrophotometric Identification of Organic Compounds, 6th edition, John Wiley & Sons, New York & London, 1998.

Straughan B.P. and Walker S., Spectroscopy, Vol I & II, Chapman and Hall, London, 1976.

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